baber/WOPTO huggingface dataset:
Patent CA-2046284-C (CA)
Title: P-n-p diamond transistor
Inventor: WELBOURN CHRISOPHER MARK
IPC: H01L21/331
Filed: 1990-02-01
Granted: 1997-12-16
Abstract: The present invention provides a P-N-P diamond transistor and a method of manufacture thereof.  The transistor comprises a diamond substrate having two p-type semiconducting regions separated by an insulating region with an n-type semiconducting layer established by chemical vapour deposition.  Preferably the p-type regions are obtained by doping with boron and controlling the concentration of nitrogen impurities by the use of nitrogen getters.  The n-type layer preferably contains phosphorus.
Patent CA-2048235-C (CA)
Title: Lowering of blood uric acid levels
Inventor: GOING PADEN C
IPC: A61P19/06
Filed: 1991-07-31
Granted: 1995-05-30
Abstract: Certain derivatives of oxophthalazinyl acetic acids of the formula       ...1 wherein R1 is hydroxy or a prodrug group, and R2 and R3 are independently hydrogen, fluoro, chloro or trifluoromethyl, except  that  R2  and  R3  are  not  both  hydrogen,  or  a pharmaceutically acceptable base addition salt of a compound of formula I wherein R1 is hydroxy, are capable of lowering blood uric acid levels in mammals.  These oxophthalazinyl acetic acid derivatives are for instance useful for treating gout and gouty arthritis in a mammal.
Patent CA-2048780-C (CA)
Title: Blade for cutting cylindrical structures
Inventor: SCHARTINGER EDWARD JOSEPH
IPC: B67B7/48
Filed: 1991-08-08
Granted: 1997-12-16
Abstract: A blade for cutting cylindrical structures is disclosed.  The working face of the blade is adapted for piercing and cutting.  The blade of the invention works to cut cylindrical structures without substantially deforming the wall of the structure adjacent to the cut. The blade may be of use in a variety of devices for cutting cylindrical structures.
Patent CA-2051826-C (CA)
Inventor: PENSABENE SAVERIO F
IPC: H01M50/536
Filed: 1991-09-19
Granted: 1996-03-05
Abstract: An electrode for a rechargeable electrochemical cell including an electrically conductive substrate, a layer of an electrochemically active material attached to the substrate, the active material comprising a reducible species of a metal, at least one conductive contact area formed of a metallic form of said metal attached to said substrate, said metallic contact area comprising said reducible species in a converted form.  A positive electrode is further provided wherein said active material is nickel hydroxide and said metallic form of said metal is nickel metal.  The invention further comprises the method for manufacturing electrodes as described above, featuring use of reducing gas to effect conversion.
Patent CA-2055010-C (CA)
Inventor: KAELIN RUEDI
IPC: H01F27/06
Filed: 1991-11-06
Granted: 1998-05-19
Abstract: A mini-transformer features an iron or ferrite core (2) and primary and secondary windings (3, 4).  Portions of the windings (3, 4) which extend beyond the iron or ferrite core (2) are covered on both sides with a thermoplastic material forming a lid (6, 7).  The two lids or end bells (6, 7) are combined into one piece by means of first bars (12), which extend through the hollow spaces (9) between the windings (3, 4) and the iron or ferrite core (2) and fill them, and that the laminated iron or ferrite core (2) is fixed in itself by second bars (14) connecting the two lids (6, 7).
Patent CA-2061401-C (CA)
Title: Water purifying apparatus
Inventor: TAKAHASHI YUTAKA
IPC: C02F3/00
Filed: 1992-02-18
Granted: 1999-05-04
Abstract: A water purifying apparatus comprises a device for feeding water under pressure; a bacteria culturing tank; and a device for feeding air to the bacteria culturing tank by inducing air utilizing the fluid energy of the circulating water.  The air flow is detected in an air suction duct.  A filter is located upstream of the device for feeding the water under pressure and prevent moss from growing in the tank and sterilizes the water.  An ultraviolet lamp is also used for sterilizing the water.  A carrier for fixing aerobic and anaerobic bacteria is composed of a basic mineral material. The apparatus is able to maintain its water purifying effect for longer than has been conventional in the art.
Patent CA-2061412-C (CA)
Inventor: CASTILLO BRADLEY EDWARD
IPC: A61J1/14
Filed: 1992-02-18
Granted: 1999-12-14
Abstract: Abstract Dispenser A dispenser for dispensing sterile solution which includes a valve means to control the dispensing of the sterile solution from a container.  The valve means comprises a solution outlet means, and an air inlet opening having associated therewith a filter membrane to filter the air passing into the container.  When dispensing solution force is applied to the container in order to achieve this, and this force causes the solution outlet means to open and prevents access of the solution to the air inlet opening.  Now when the force is relieved a partial vacuum is formed in the container which causes the solution outlet means to close and air is drawn into the container via the air inlet opening and through the filter membrane.
Patent CA-2063592-C (CA)
Title: Process for preparing a protein by a fungus transformed by multicopy integration of an expression vector
Inventor: GIUSEPPIN MARCO L F
IPC: C12N9/40
Filed: 1990-07-09
Granted: 2003-01-21
Abstract: A process is disclosed for preparing a protein by a eukaryote transformed by multicopy integration of an expression vector into the genome of a yeast, such as Saccharomyces, Hansenula and Kluyveromyces, or of a mould such as Aspergillus, Rhizopus and Trichoderma, said expression vector containing both an "expressible gene" encoding said protein and a so-called "deficient selection marker needed for the growth of the yeast or mould in a specific medium", such as the LEU2d, TRP1d or URA3d gene, in combination with a ribosomal DNA sequence, resulting in stable high copy integration of 100-300 copies per cell.      This multicopy integration results in a increased production of the desired protein, which can be guar a-galactosidase, an oxidase or a hydrolytic enzyme such as a lipase.
Patent CA-2066430-C (CA)
Title: Process for the preparation of methylenebisphosphonic acids
Inventor: LAMPI KLAUS
IPC: C07F9/38
Filed: 1990-08-15
Granted: 1999-02-02
Abstract: The object of the invention is a process for the preparation of optionally mono or dihalogen substituted methylenebisphosphonic acids, whereby the corresponding lower alkyl tetraester is hydrolyzed in an aque ous solution of the tetraester and hydrochloric acid, which solution contains 1 to 5 % by weight of HCl, calculated on the mixtu re.
Patent CA-2066974-C (CA)
Title: Optical fiber connector
Inventor: UEDA TETSUJI
IPC: G02B6/36
Filed: 1992-04-24
Granted: 1997-10-28
Abstract: Optical fiber connector comprises a ferrule receiving an optical fiber and a sleeve member for holding the ferrule.  The body of the ferrule is made of glass on which a thin layer is deposited for reinforcement of the body.  The thin layer may be made by hydrolysis, chemical vapor deposition, spray coating etc.          The ferrule of the optical fiber connector is inexpensive, easy to assemble and suitable for mass production.
Patent CA-2068406-C (CA)
Title: Catalytic distillation system
Inventor: SMITH LAWRENCE A JR
IPC: B01J19/30
Filed: 1991-09-05
Granted: 1996-12-31
Abstract: a catalytic distillation system is provided having a first component which is a particulate catalyst useful for carrying out the desired chemical reaction and a second component which is a hollow geometric shape having openings through the outer surface to allow gas and liquid to pass therethrough. The two components are mixed to provide the desired open space and loaded into a distillation column reactor. The hollow geometric shapes provides the spacing, while the openings permit the gas and liquid to flow through, thus providing the requisite vapor liquid contact space and surfaces.
Patent CA-2069800-C (CA)
Inventor: DARCY ANDRE
IPC: H01B17/36
Filed: 1992-05-28
Granted: 2003-04-15
Abstract: Dispositif de protection contre les effets d'un claquage pour extrémité de câble électrique.   Le dispositif de protection comporte un isolateur (3) et une enceinte métallique (4) définissant une chambre étanche (6) mise sous pression de gaz diélectrique autour de l'extrémité de câble et séparée de l'air ambiant par un disque de rupture (7) prévue sur l'enceinte métallique.   Il est caractérisé en ce qu'il comporte en outre une manchette métallique de révolution (10) de protection de l'isolateur, s'étendant à l'intérieur de la chambre (6), à proximité du câble, et se terminant par un rebord torique (12) à convexité tournée vers le câble, au-delà d'une zone de claquage dans la chambre et du côté opposé à celui du disque de rupture.   Application: protection d'extrémité de câble très haute tension.</SDOAB >
Patent CA-2076361-C (CA)
Title: Telecommunications call-processing arrangement
Inventor: BOGART FRANK JEFFREY
IPC: H04Q3/00
Filed: 1992-08-19
Granted: 1996-08-27
Abstract: A call-processing arrangement (200) views a network numbering plan as a language in the mathematical/computer science sense and takes a lexicographic approach to call processing. Numbering plan syntax is defined by data in tree data structures (320, 330), and numbering plan grammar is defined by data in matrix data structures (400, 410). The data structures are used by numbering plan-independent functions to determine the meaning of call-associated digit strings and to specify the treatment (e.g., routing, features,) to be given to the call based on that meaning. A string-identification function (340) applies collected digits to the trees and matrices to find leafs (312) that define digit strings that make up the number. A string-action function (341) uses the definitions in the found leafs to form a call-route-specifying or call-feature-specifying index (254) for the call. A generalized route-selection function (343) uses a set of first call characteristics including the route-or-feature-specifying index to select from multi-dimensional matrices (1200, 1202) either afeature module (205) to be invoked or a routing-pattern number (1201), and in the latter case uses a set of second call characteristics including the routing-pattern number to select a route preference (1701) from routing pattern-preference tables (1300). A digit-sending function (344) uses the route preference to select an entry of digit-sending information (1701) from a sending table (1700) and uses the sending information to establish a call path and to outpulse digits. A digit modification function (343) and a table (1000) of digit modifications are also provided for purposes of number conversion, such as between different network numbering plans when more than one is defined.
Patent CA-2079699-C (CA)
Title: Ultraviolet resistant silica glass fiber
Inventor: TAKITA MASATOSHI
IPC: C03B37/014
Filed: 1992-10-02
Granted: 2002-03-05
Abstract: A silica glass optical fiber superior in resistance to ultraviolet rays, which fiber comprises a doped silica glass cladding layer formed on a silica glass core, said silica glass core having an OH content of 10-1000 ppm, a fluorine content of 50-5000 ppm, and being substantially free of chlorine.
Patent CA-2082094-C (CA)
Title: Durable water repellent glass surface
Inventor: GOODWIN GEORGE BRIAN
IPC: C08J7/046
Filed: 1992-11-04
Granted: 1996-10-22
Abstract: A method and article are disclosed wherein a glass substrate is provided with a more durable non-wetting surface. High water repellancy and high lubricity are provided by perfluoroalkylalkyl-silanes which bond directly to a silica surface, preferably by treatment with a perfluoroalkylalkylsilane and a fluorinated olefin telomer on a glass surface on which has been deposited a silica primer layer in accordance with the present invention. The durability of the water and dirt repellancy of a glass surface is improved by applying a silica primer layer to the glass substrate prior to treating the surface with select fluorinated compounds. The silica primer layer may be applied to the glass surface by pyrolytic deposition, magnetron sputtering, sol-gel condensation reaction of e.g. alkyl silicates or chlorosilanes or other conventional methods. The silica primer of the present invention provides more durability to a glass surface treated with perfluoroalkylalkylsilanes for high water repellancy and high lubricity.
Patent CA-2084308-C (CA)
Title: Remotely controlled apparatus for conditioning telephone line exclusive of metallic dc bypass pair
Inventor: KENNEDY MICHAEL
IPC: H04M3/30
Filed: 1992-04-03
Granted: 2002-11-19
Abstract: A remotely controlled line conditioning apparatus (80) is in-stalled in the terminal (12) where access to the telephone loop (52) to be tested is readily available. The line conditioning apparatus (80) in-cludes a telephone line termination unit (100) and an intelligent control unit (110). The telephone line termi-nation unit has a telephone line access port to which a telephone line pair is selectively coupled, and is operative to controllably impart a selected one of a plurality of electri-cal signalling conditions to the tele-phone line pair under test. The con-trol unit has a communication mo-dem (112) through which communi-cation signals containing telephone line conditioning messages are cou-pled to and from the central office/ remote terminal communication link. The control unit also includes a micro-controller (122). Control signals generated by the micro-con-troller control the operation of the telephone line termination unit which conditions the telephone line pair.
Patent CA-2084982-C (CA)
Title: Package for paper handkerchiefs
Inventor: FOCKE HEINZ
IPC: B65D83/08
Filed: 1992-12-09
Granted: 1999-08-31
Abstract: A b s t r a c t : (in conjunction with Fig. 2) A package for stacks of folded paper handkerchiefs  is  dis-closed.  Paper handerkchiefs (10) and similar cellulose pro-ducts are offered in soft packs.  An  outer  wrapper  (blank 11)  is  made  of  paper  or  a (plastic) foil. A withdrawal opening (19) in the region of a  front  wall  (12)  is  sub-stantially  smaller in width than the front wall (12). Like-wise, a  closure  flap  (23)  which  covers  the  withdrawal opening  (19)  in  the  closed  position is smaller in width than the front wall (12), so  that  any  variations  in  the measurements  of  the  packages  do  not  lead  to undesired package configurations. The closure flap  (23)  is  designed to  be  a  part  of an outer tab (28) of an end wall (16) of the pack. This part of  the  closure  flap  (23)  is  firmly connected  to  folding  tabs  of  the end wall (16) disposed thereunder, so that  the  withdrawal  opening  (19)  extends only up to a transverse edge (22).
Patent CA-2090931-C (CA)
Title: Energy-absorbing, water-blown, rigid polyurethane foams
IPC: C08G18/48
Filed: 1993-03-03
Granted: 1997-08-12
Abstract: The invention relates to energy absorbing, water blown, rigid polyurethane foams.  The foams of the present invention are low density, predominantly open-celled foams which exhibit a relatively constant consistency of compressive strength over deflection.  Such foams are suitable as light weight alternatives in traditional energy absorbing applications.
Patent CA-2092993-C (CA)
Title: Car seat level indicator
Inventor: WISE ROBERT D
IPC: G01C9/10
Filed: 1991-09-05
Granted: 1996-07-02
Abstract: A positioning device (12) for a car seat (3) indicates when the car seat has been properly positioned in an automobile or on a shopping cart. The positioning device includes a paper backing (14) which is encapsulated in a plastic housing (16). The plastic housing includes a relief projection (20) in the shape of an arc. A ball (24) slides within the relief projection and against the paper backing. Printed information (30) on the paper backing indicates when the seat is in the proper orientation according to the posi-tion of the ball.
Patent CA-2095688-C (CA)
Title: Atrial defibrillator and method for providing interval timing prior to cardioversion
Inventor: ADAMS JOHN M
IPC: A61N1/39
Filed: 1993-05-06
Granted: 1998-08-11
Abstract: An implantable atrial defibrillator provides cardioverting electrical energy to the atria of a human heart in need of cardioversion.  The atrial defibrillator includes a first detector  for detecting ventricular activations of the heart, a second detector for detecting atrial activity of the heart, and an atrial fibrillation detector  responsive  to  the  second  detector  for determining when the atria of the heart are in need of cardioversion.  The atrial defibrillator also includes a cardioverting  stage  for  applying  the  cardioverting electrical energy to the atria of the heart when the atria of the heart are in need of cardioversion and when the  time  between  immediately  successive ventricular activations is greater than a preselected minimum time interval.
Patent CA-2100868-C (CA)
Title: Derivatives of dicarboxylic acids having six to twelve carbon atoms and use of these derivatives and dicarboxylic acids alone in the preparation of pharmaceutical compositions forenteral and parenteral nutrition
Inventor: CASTAGNETO MARCO
IPC: C07C229/22
Filed: 1992-01-28
Granted: 2001-08-21
Abstract: Linear chain dicarboxylic acids having 6 to 12 carbon atoms and novel derivatives thereof, such as amides with natural am-ino acids and esters with biliary acids, are useful in the formulation of pharmaceutical compositions suitable for enteral and par-enteral administration.
Patent CA-2103076-C (CA)
Inventor: PLOTNER RUSSELL R
IPC: A24D1/22
Filed: 1993-11-12
Granted: 1998-01-27
Abstract: A smoking article includes a fuel rod coaxially aligned with and circumscribing two insulating tubes of different heat transfer coefficients wherein the inner most insulating tube is filled with an aerosol generating composition including flavor vaporizing materials therein.
Patent CA-2117849-C (CA)
Inventor: SHIMOMURA AKIHIKO
IPC: C08L101/10
Filed: 1994-10-11
Granted: 2000-03-28
Abstract: An ink jet head comprises parts for holding liquid ink, the parts being sealed with a moisture-curing sealant composed mainly of an organic high polymer compound having an alkoxysilane moiety represented by Formula (1) in the molecule thereof:   (see formula I) where X is hydrogen, methyl, ethyl, propyl or halogen;      R is methyl, ethyl or propyl; and n is 1, 2 or 3.
Patent CA-2122583-C (CA)
Inventor: LAISNE ANDRE
IPC: H05H13/00
Filed: 1992-11-20
Granted: 2001-12-11
Abstract: A superconducting or non-superconducting compact isochronic cyclotron in which the particle beam is sectorally focused. The cyclotron comprises a solenoid forming a magnetic circuit which includes at least 3 pairs of sectors known as "ridges" where the air gap is reduced, and separated by sector-shaped spaces known as "valleys" where the air gap is larger. Said magnetic circuit is energized by at least one pair of circular main coils surrounding the solenoid poles. Said cyclotron is characterized in that the air gap between two ridges has a substantially elliptical curved profile which completely closes off the radial end of the ridges at the centre plane.
Patent CA-2123427-C (CA)
Inventor: INOUE FUJIO
IPC: A61J1/10
Filed: 1993-09-06
Granted: 1999-06-01
Abstract: L'invention concerne un matériau polyoléfinique d'emballage de médicaments, qui contient au moins 150 ppm de substances C12-C26 et présente extrêmement peu de risques d'altérer les médicaments qu'il permet d'emballer.
Patent CA-2123702-C (CA)
Title: Suction nipple eversion device
Inventor: MCGEORGE DOUGLAS DONALD
IPC: A61M1/08
Filed: 1992-11-20
Granted: 2002-10-15
Abstract: A device incorporating a transparent nipple mould (1) with a sealing flange (2) attached to a valve and syringe port (3). With the device held on the breast, over the nipple areolar complex, air can be withdrawn and the inverted nipple sucked up into the mould (1). Peri-odic use stretches up the short lactiferous ducts.
Patent CA-2129986-C (CA)
Inventor: SCHWENDENER ALBERT RETO
IPC: A61K31/70
Filed: 1993-02-12
Granted: 2003-12-09
Abstract: The present invention relates to amphiphilic nucleosidephosphate analogues of Formula I (See formula I) wherein R1 stands for a hydroxyl-, amino-, acylated, or alkylized amino group or one substituted by polyoxyethylene, whose acyl- or alkyl rest is linear or branched, have 1 to 24 C-atoms and up to 2 double bonds, and which can be substituted by an aromatic radicals R2 stands for H, F, a 2-bromvinyl radical or a linear or branched C1-C24 alkyl radical;    R3 and R4 are identical or different and stand for H, hydroxyl, halogen and azido;     R5 is a nucleoside radical of Formula II (See formula II) that is connected through R8, R9, or R10 to the nucleotide of Formula I. R5 can also stand for OH.     A procedure for producing these, and pharmaceutical means are also described.
Patent CA-2134038-C (CA)
Title: Potentiation of drug response
Inventor: WONG DAVID TAIWAI
IPC: A61K31/55
Filed: 1994-10-21
Granted: 1997-06-03
Abstract: The power of fluoxetine, venlafaxine, milnacipran and duloxetine to increase the availability of serotonin, norepinephrine and dopamine, particularly serotonin, is augmented by administration in combination with a drug which is a serotonin 1A receptor antagonist.
Patent CA-2140887-C (CA)
Title: New nimesulide salt cyclodextrine inclusion complexes
Inventor: GECZY JOSEPH
IPC: A61K31/63
Filed: 1994-05-18
Granted: 2000-08-01
Abstract: Inclusion complexes of nimesulide alkali and alkaline earth metal salts of general formula (I) <IMG> where A stands for an alkali and alkaline earth metal ion with cyclodextrins and cylcodextrin derivatives, compositions containing the same, processes for the preparation of the complexes by complexation of nimesulide salts and the compositions as well as methods to use the same as pharmaceuticals.
Patent CA-2142947-C (CA)
Title: Apparatus and method for reading utility meters
Inventor: AYALA RAYMOND F
IPC: G01R21/133
Filed: 1995-02-20
Granted: 2000-05-23
Abstract: An electronic meter reader having a transmitter and antenna for inductively transmitting alternating current power in any selected one of a plurality of frequencies.  The reader further includes a receiver for inductively receiving meter reading data from the meter being read represented by a load modulation of the transmitted frequency.  A bandpass filter limits the bandwidth of the modulation frequency.   The power transmitted by the transmitter may also be used by the meter to generate and transmit data representative of the meter reading back to the reader.   A second receiver is also provided for inductively receiving reading data from the meter in the form of a modulated frequency generated by the meter.   The reader includes  a  microprocessor  and  program  which  control  the generation of a plurality of interrogation signal formats, and which decode a plurality of received data formats.
Patent CA-2143896-C (CA)
Title: An ink jet recording apparatus
Inventor: KOIZUMI YUTAKA
IPC: B41J2/155
Filed: 1995-03-03
Granted: 2000-02-08
Abstract: An ink jet recording head for effecting recording with ejection of ink includes a plurality of element substrates each having a plurality of ejection energy generating elements for ejecting the ink; a base plate for supporting the plurality of element substrates on one surface thereof in an array; a grooved member having a length corresponding to a length of the array and having passages corresponding to the ejection energy generating elements of the plurality of element substrates.