baber/WOPTO huggingface dataset:
Patent CA-2266956-C (CA)
Title: Process for the manufacture of chemical absorbents, and chemical absorbent formulations
Inventor: HOLDER MICHAEL JOHN
IPC: B01J2/22
Filed: 1997-10-16
Granted: 2006-07-11
Abstract: A soda lime formulation comprises calcium hydroxide in admixture with sodium hydroxide and potassium hydroxide and water, and further comprises a zeolite such as sodium aluminium silicate. The formulati on has improved mechanical strength and may be prepared in granular form by mixing its constituents with water to form a paste and passing the paste between a pair of rollers having hemispherical depressions therein.
Patent CA-2268241-C (CA)
Title: Hypothermic storage technology for biological material
Inventor: KUKAL OLGA
IPC: A23L3/36
Filed: 1997-10-10
Granted: 2001-11-27
Abstract: The present invention relates to the optimum bio-storage temperature of biological materials. The temperature is between the melting point depression of the biological material and zero degrees C. The melting point depression temperature is determined by thermography, differential scanning calorimetry and cryomicroscopy.
Patent CA-2268447-C (CA)
Inventor: HITZSCHKE LOTHAR
IPC: H05B41/24
Filed: 1998-07-16
Granted: 2005-02-22
Abstract: L'invention concerne un procédé de production de séries d'impulsions de tension pour faire fonctionner des lampes à décharge (8), ledit fonctionnement étant obtenu grâce à une décharge pulsée, diéléctriquement inhibée. Selon ledit procédé, la série d'impulsions de tension est composée de deux séries d'impulsions de tension partielles, de telle sorte que les sommes des valeurs de crête de chaque série d'impulsions de tension partielles soit plus petite que les sommes des valeurs de crête de la série de tensions d'impulsion résultante, par exemple deux fois plus petite. Cela a pour avantage le fait que lors de la production des séries d'impulsions de tension partielles, il se produit des interférences électromagnétiques proportionnellement plus faibles. En outre, les deux séries d'impulsions partielles présentent, par rapport à un potentiel de référence, des flancs antérieurs d'inclinaison opposée, les deux séries d'impulsions de tension partielles étant, de préférence, inversées. Ainsi, les interférences électromagnétiques produites par les deux séries de tension d'impulsions partielles se compensent de façon idéale, au moins localement, complètement. Un circuit comporte à cet effet deux circuits d'impulsion (1; 2) montés en série qui sont synchronisés au moyen d'un circuit d'horloge.
Patent CA-2271509-C (CA)
Title: Conveying a tool along a non-vertical well
Inventor: SALLWASSER ALAN J
IPC: E21B23/14
Filed: 1999-05-12
Granted: 2003-04-22
Abstract: A conveyance apparatus for conveying at least one logging tool through an earth formation traversed by a horizontal or highly deviated borehole is disclosed. The conveyance apparatus comprises a pair of arcuate-shaped cams pivotally mounted to a support member, means for biasing the arcuate surface of each cam into contact with the borehole wall, and actuators operatively connected to each cam. A logging tool is attached to the conveyance apparatus. When either actuator is activated in a first direction, the cam connected to the activated actuator is linearly displaced forward and the arcuate surface of the cam slides along the borehole wall. When either actuator is activated in a second direction, the activated actuator pulls the connected cam backwards and the biasing means thereby urges the arcuate surface of the cam to lock against the borehole wall. Once the cam is locked, further movement of the actuator propels both the conveyance apparatus and the logging tool forward along the highly deviated or horizontal borehole.
Patent CA-2273254-C (CA)
Title: Improved center feed toilet paper dispenser
Inventor: JOHNSON JOHN R
IPC: A47K10/32
Filed: 1997-12-10
Granted: 2007-07-10
Abstract: An apparatus for containing and dispensing toilet paper. The apparatus holds the toilet paper roll (12) in a stationary position as the loose paper end (28) is pulled from the inner core of the paper roll (12). A housing (10) for containing the paper roll (12) is attached to a base (16), and a cover (20) engaged with the housing (10) compresses the paper roll (12) against the base (16). This compression prevents sag of the layered toilet paper roll (12) as the void in the paper core becomes enlarged.
Patent CA-2277309-C (CA)
Title: Crystalline polyurethane thermoplastic material and method for the manufacture thereof
Inventor: AYUSO PIQUERAS JOSE LUIS
IPC: C08G63/08
Filed: 1998-11-18
Granted: 2009-10-13
Abstract: The invention relates to a compound of general formula (I) wherein 1< f & lt; 500; 1 < f'15; R and R' .ident. alkyl or aryl and X has formula (II), wherein 2 < n < 140; 1 < (n+n') < 51. The inventive method consists in reacting a polyether-polycaprolactone block copolymer of formula (I) having a molecular weight of 1000-6000, formula (IIa), with a chain developer of formula HO-R'-OH and a diisocyanate of formula HCN-R-NCO.
Patent CA-2283879-C (CA)
Inventor: WELFONDER KONRAD
IPC: E06B9/42
Filed: 1999-09-27
Granted: 2007-01-02
Abstract: A locking device (38) for locking a hollow longitudinally extending tubular roller (12) of a shade (16) of an architectural covering (1) releasably in any unwound position of the shade. The locking device (38) comprises the roller (12), a center shaft (28) concentrically arranged within the roller and a return spring (32), capable of being operatively interposed between said roller (12) and said center shaft (28), for biasing said roller (12) towards a fully wound position of said shade (16). It also comprises a disc (42) rotatably mounted on said center shaft (28) radially adjacent a first portion (12A) of the length of a circumferential inner surface of said roller (12) and a plurality of detent projections (82, 86) integrally formed on a second portion (12B) of the length of the inner surface of said roller (12). A  cam member (44) is mounted on said center shaft (28), so as to be able to carry out sliding movement transversely, preferably laterally, of said center shaft (28), between two end positions. The cam member (44) has a lateral cam projection (70, 90) for engaging said detent projections (82, 86). Friction means (47, 48, 49) are provided between said disc (42) and said roller (12), for yieldingly engaging said disc (42) to rotate with said roller (12) in either of two opposite rotational directions. The friction means includes a cylindrical cavity (47) housing a coaxially-extending compression spring (48) and a ball (49), radially outwardly of said compression spring; said ball being biased against, and fractionally engaging, said first portion (12A) of the inner surface of said roller (12). The disc (42) has a face (51) that confronts said cam member (44) and is provided with a guide track (52) forming a closed loop in the face of the disc and the cam member (44) is provided with a pawl (74) engaged in said guide track (52) to move said cam member (44) between said two end positions in response to changes in rotational direction of said roller.
Patent CA-2295177-C (CA)
Title: Systeme de ciblage de medicament, procede permettant de le preparer et son utilisation
Inventor: SCHROEDER ULRIKE
IPC: A61K51/12
Filed: 1997-06-13
Granted: 2007-01-09
Abstract: L'invention concerne une composition et un procédé de fabrication selon lequel les nanoparticules peuvent servir d'outil permettant de distribuer des médicaments à une cible spécifique à l'intérieur ou sur le corps d'un mammifère, plus particulièrement, en utilisant des stabilisants autres que le dextrane 70.000 pendant le processus de polymérisation. Selon la présente invention les tensioactifs, qui se sont avérés des matériaux de revêtements nécessaires dans l'art antérieur, ne sont plus nécessaires. Ceci nous a permis de simplifier considérablement le procédé de fabrication. Beaucoup de substances sont utiles en tant que stabilisants, mais on utilise de préférence le Dextrane 12.000 ou le polysorbate 85. Selon la présente invention, un médicament est soit ajouté, soit adsorbé sur les nanoparticules stabilisées. Ce complexe médicament/nanoparticule est ensuite administré à l'organisme par voie orale, par injection ou par inhalation, le médicament produisant son effet au site désiré d'action pharmaceutique. Lors d'un nouveau processus de traitement médical, le complexe de médicament/nanoparticule peut être administré de préférence soit par injection intraveineuse soit par voie orale. L'activité thérapeutique obtenue, qui n'existe pas ou est insuffisante lorsque le médicament est administré seul, montre que, lorsque les médicaments sont liés auxdites nanoparticules, ils peuvent atteindre une cible spécifique à l'intérieur ou sur le corps de mammifères. L'utilité de la présente invention en tant que méthode universelle consistant à distribuer n'importe quel médicament ou agent de diagnostic à une cible spécifique à l'intérieur ou sur le corps de mammifères a été démontrée par des expériences indiquant un transfert imprévu du médicament à travers la barrière hémato-encéphalique.
Patent CA-2298008-C (CA)
Title: Process for making perfume-impregnated hydrogel-forming absorbent polymers
Inventor: SHIMIZU MOTOHIRO
IPC: A61F13/472
Filed: 1997-07-24
Granted: 2004-06-15
Abstract: The present invention is directed to a process for making a perfume-impregnated hydrogel-forming absorbent polymer wherein release of a perfume smell is triggered by dynamic swelling force of the polymer when the polymer is wetted, which comprises the steps of: (i) mixing a solid carrier and a perfume with reaction intermediates of hydrogel-forming absorbent polymer before the gelation point of polymerization of the hydrogel-forming absorbent polymer, (ii) forming the perfume-impregnated hydrogel-forming absorbent polymer, and (iii) drying the perfume-impregnated hydrogel-forming absorbent polymer. The present invention further relates to such perfume-impregnated hydrogel-forming absorbent polymer. The present invention further relates to a disposable absorbent article comprising such perfume-impregnated hydrogel-forming absorbent polymer.
Patent CA-2300963-C (CA)
Inventor: ZEITELS STEVEN
IPC: A61B1/273
Filed: 1998-09-21
Granted: 2008-08-05
Abstract: A universal modular glottiscope system includes a set of differently dimensioned elongate tubular elements (110) for insertion into a patient's larynx for laryngoscopic procedures or intubation. Each tubular element (110) has a substantially triangular cross section distally defined by a substantially planar base (106) and two curved sides (110) which intersect at an apex line (112) and may have varying curvature between the apex line (112) and the base (106). A distal end opening (102) is defined by an intersection of the cross section with an imaginary plane at a selected angle to the longitudinal direction of the tubular element. At the proximal end of each tubular element, which is D-shaped in configuration and wider than the distal end, is provided a pair of opposed end slots (118, 120) intermediate the apex line (112) and the base (106). The planar base (106) is detachable. Above the slots (118, 120), adjacent the proximal end of each tubular element, is a standardized handle-attachment fitting (104). A  surgeon using the system may inspect the patient and, based on measurements and/or experience, select the most suitable elongate tubular element (110) from the set and manually attach a standardized handle element (126, 132) thereto at the standardized handle-attachment (104) thereof.
Patent CA-2301555-C (CA)
Inventor: YESBICK JONATHAN D
IPC: G09F1/12
Filed: 1997-08-06
Granted: 2005-11-08
Abstract: An air-chambered frame (10) for sealing a photograph or any document therein to protect against any type of moisture or environmental element. The frame comprises an integrally formed frame plate (11), having a finished outer surface and a rear surface defining a plurality of recessions (15) and a transparent lens section (12) centrally located therein, a backing plate (25) of substantially the same outer dimensions as the frame plate (11), an adhesive gasket (26) for joining the backing plate (25) and frame plate (11) and for sealing the contents therein from any moisture and an opaque cover plate (30) which is removably attached to the frame plate ( t 1 ) for concealing the contents of the frame from view or light.
Patent CA-2308629-C (CA)
Inventor: OLIVIER ANDRE
IPC: A61B17/34
Filed: 1999-09-09
Granted: 2009-06-16
Abstract: This apparatus comprises a rigid half circular headclamp, three fixation pins to firmly secure the clamp to the patient's skull, a connector to firmly secure the clamp to a surgical table on which the patient rests, an articulated arm including clampable joints, secured to the headclamp in one of several possible positions and a double chuck secured to the distal end of the articulated arm. The double chuck has two ball collets arranged in side by side cavities in the chuck body, and two locking screws for each ball collet. A first locking screw releasably locks the ball collet in a selected orientation, a second separate locking screw releasably locks in an adjusted axial position an elongated instrument inserted through said collet. The first and second locking screws are actuated independently of each other. A computer guided probe and a large number of surgical instruments can be slidably inserted within the ball collets and locked in an adjusted axial position and in a selected orientation.
Patent CA-2308736-C (CA)
Title: Catalytic composition for the upgrading of hydrocarbons having boiling points within the naphtha range
Inventor: ZANIBELLI LAURA MARIA
IPC: B01J23/882
Filed: 2000-05-05
Granted: 2010-08-03
Abstract: A process is described for the upgrading of hydrocarbon mixtures which boil within the naphtha range containing sulfur impurities, i.e. a hydrodesulfuration process with contemporaneous skeleton isomerization and reduced hydrogenation degree of the olefins contained in said hydrocarbon mixtures, the whole process being carried out in a single step. The process is carried out in the presence of a catalytic system comprising a metal of group VI B, a metal of group VIII and a carrier of acid nature consisting of a mesoporous silico-alumina.
Patent CA-2309062-C (CA)
Title: Access channel slot sharing
Inventor: MILLER DAVID S
IPC: H04W16/00
Filed: 1998-11-10
Granted: 2008-07-22
Abstract: The present invention is a system and method for increasing user capacity on a slotted random access channel in a spread spectrum communications system (100) by using a multi-part access probe (502). First and second parts (508, 510) of an access probe preamble (604) are modulated using a short PN code sequence (620), and the second part and remainder of the access probe (502) is modulated using a long PN code sequence. Information to be transmitted by the access probe (502) is modulated on the second part (606) of the access probe (502), and the access probe is transmitted so that the first part (508) of the probe preamble (604) falls within the boundaries of an access channel slot (402). In one embodiment, time slots (402) in access channels (400) used for access signal reception are made the length of the first part (508). In a further embodiment, time slots (402) in a plurality of adjacent access channels used for access signal reception may be longer than said first part (508) but are offset in time from each other by the length or period of the first part.
Patent CA-2311652-C (CA)
Title: A cyanoacrylate adhesive containing an added ester and polymer
Inventor: KLAUCK WOLFGANG
IPC: C09J4/04
Filed: 1998-11-19
Granted: 2012-04-03
Abstract: The invention relates to a cyanacrylate adhesive containing a plasticiser in the form of at least one part- or whole-ester of mono- or polyvalent aliphatic carboxylic acids with 1 to 5 directly interlinked C-atoms and mono- to pentavalent aliphatic alcohols with 1 to 5 directly interlinked C-atoms, the number of directly interlinked C-atoms in the other aliphatic groups being at most 3 if an aliphatic group contains 4 or 5 C-atoms. The stability of the adhesive in storage is good even with high concentrations of plasticisers. The adhesive becomes pressure-sensitive. The invention is characterised in that up to approximately 20 % can be added without significantly extending the setting time. Polymers can be added in a concentration of 1 to 60 wt. %.
Patent CA-2324191-C (CA)
Inventor: WAKASHIRO TERUO
IPC: B60L50/16
Filed: 2000-10-25
Granted: 2005-04-19
Abstract: The control apparatus of the present invention is provided in a hybrid vehic le with a combustion engine for outputting a driving force, an electric motor f or generating a force for assisting the output from the engine, depending on the driving conditions, a power storage unit for storing electric energy generated by the motor acting as a generator using the output from the engine and electric energy regenerated b y the motor when the vehicle decelerates. The control apparatus comprises: an output assistance determining device for determining whether to assist the output from the engine by the motor; a generation controller for setting the amount of generation by the motor and performing the generation by the motor when the output assistance determinin g device determines that the motor is not to assist the output from the engine; and a generation limiter for limiting the amount of generation set by the generation controller.
Patent CA-2328854-C (CA)
Title: Ticket dispensing modules and method
Inventor: MARTIN STEPHEN A
IPC: G03F7/031
Filed: 1999-04-09
Granted: 2005-08-23
Abstract: The dispenser (21 ) dispenses tickets (46) such as instant-winner lottery tickets from a strip in which the individual tickets are delineated by perforation lines (47). The dispenser includes a separator (58) to tear the tickets apart before issuing them from the machine. The separator preferably is rotary and has a dull helical blade (92) which rotates to contact the ticket strip adjacent a perforation line, and presses against the strip to tear the tickets apart along the perforation line at a point which progresses across the strip along the perforation line. A detector (l40) is provided to position the front edge of the first ticket in the strip at the proper location before separation is performed. Preferably, a code bar reader is provided for reading information from the tickets to initialize the dispenser control system and in accounting for the sale of tickets, and in the verification of winning tickets being sold.
Patent CA-2330459-C (CA)
Title: Zeolites x echangees notamment au lithium, leur procede de preparation et leur utilisation comme adsorbants de l'azote dans la separation des gaz de l'air
Inventor: PLEE DOMINIQUE
IPC: C01B39/02
Filed: 2001-01-03
Granted: 2008-07-29
Abstract: La présente invention concerne des zéolites X dont la majorité des sites échangeables est occupée par du lithium et des cations di- et/ou trivalents ayant une stabilité thermique et une cristallinité améliorées par rapport aux zéolites de l'art antérieur de même taux d'échange en lithium et en cations di- et/ou trivalents. Elles sont particulièrement efficaces comme adsorbants de l'azote contenu dans divers mélanges gazeux et sont bien adaptées pour la séparation non- cryogénique des gaz de l'air.
Patent CA-2339341-C (CA)
Inventor: PERVAN TONY
IPC: E04F/
Filed: 1994-04-29
Granted: 2005-12-27
Abstract: An edge lock is provided for use in a flooring system having a plurality of floor panels. The edge lock mechanically and releasably locks together adjacent edges of pairs of adjacent floor panels during assembly of the flooring system, and when said adjacent floor panels are laying flat on a subfloor with upper corner portions of said adjacent edges being mutually spaced apart, the edge lock includes a lock for forming a mechanical connection for locking the adjacent edges to each other in a vertical direction, and for forming a second mechanical connection for locking the adjacent edges to each other in a horizontal direction at right angles to the edges.      The lock includes a locking groove extending parallel to and spaced from a first one of the adjacent edges of one of the adjacent floor panels and being open at a rear side of the one adjacent floor panel, and a flexible and resilient locking strip integrated with another of the adjacent floor panels.
Patent CA-2342808-C (CA)
Title: Apparatus and method for generating scrambling code in umts mobile communication system
Inventor: KIM JAE-YOEL
IPC: H04J13/16
Filed: 2000-07-07
Granted: 2012-11-27
Abstract: A scrambling code generating apparatus of a downlink transmitter in a UMTS  mobile communication system, which uses one primary scrambling code for separation of base stations and multiple secondary scrambling codes for channel separation. The apparatus includes a first m-sequence generator for generating a first m-sequence and a second m-sequence generator for generating a second m-sequence. A first summer adds the first and second m-sequences to generate the primary scrambling code. A plurality of first masking sections each shift the first m-sequence, and a plurality of second masking sections corresponding to the respective first masking sections each shifts the second m-sequence. A plurality of second summers each adds one of the first shifted m-sequences with the second m-sequence corresponding to the first m-sequence.  The output of the second summers thus generates the multiple secondary scrambling codes.
Patent CA-2343088-C (CA)
Title: Transfer hydrogenation process
Inventor: BLACKER ANDREW JOHN
IPC: C07B61/00
Filed: 1999-09-22
Granted: 2009-02-24
Abstract: A catalytic transfer hydrogenation process is provided. The catalyst employe d in the process is a metal neutral hydrocarbyl complex which is coordinated to defined bidentate ligands. Preferred metals include rhodium, ruthenium and iridium. Preferred bidentate ligands are diamines and aminoalcohols, particularly those comprising chiral centres. Th e hydrogen donor is advantageously a mixture of triethylamine and formic acid. The process can be employed to transfer hydrogenate iminium salts, which are preferably prochiral.
Patent CA-2352444-C (CA)
Inventor: KAMMERER K SCOTT
IPC: G02B6/36
Filed: 2001-07-05
Granted: 2005-05-24
Abstract: A swab for cleaning electronic and electro-mechanical components includes a handle and a pull-truded fiber cleaning head. The handle is elongated and has a cleaning head end and a grasping end. The cleaning head end defines a securing region for securing the cleaning head to the handle. The cleaning head is formed from a plurality of fibers that are pulled through a die to compress the fibers into a substantially rigid, elongated cleaning head. The swab includes a tether to secure the swab and prevent inadvertent misplacement.
Patent CA-2357335-C (CA)
Title: Methods of treating manure
Inventor: MOORE PHILIP A JR
IPC: A01C3/00
Filed: 2001-09-12
Granted: 2009-12-08
Abstract: A method of treating animal manure solids comprises contacting the solids with a treatment composition comprising AlCl3.cndot.nH2O or Al(NO3)3.cndot.mH2O, or the residue of AlCl3.cndot.nH2O or Al(NO3)3.cndot.mH2O, to form a treated waste product, wherein n is from O to 10, and m is from 0 to 12. The treatment amount can be effective to reduce phosphorus solubility in the manure; reduce phosphorus runoff and/or phosphorus leaching from fields fertilized with manure; inhibit ammonia volatilization from the manure; flocculate solids in the manure; reduce pathogens in the manure; increase the nitrogen content in the manure; and/or reduce acid rain and PM-10s associated with the manure.
Patent CA-2357540-C (CA)
Title: Method for producing an active heterodimeric amv-rt in prokaryotic cells
Inventor: SOBEK HARALD
IPC: C12P19/34
Filed: 2001-09-20
Granted: 2010-07-13
Abstract: The heterologous expression of the reverse transcriptase from the Avian Myeloblastosis Virus (AMV-RT) in prokaryotic cells and in particular Escherichia coli (E. coli) is described in the present invention. The invention also includes certain measures to simplify the purification of the heterodimeric AMV-RT.