baber/WOPTO huggingface dataset:
Patent CA-2064998-C (CA)
Title: Transverse blower fan and method of assembly
Inventor: RICKETTS JON E
IPC: F04D29/28
Filed: 1992-04-02
Granted: 1996-12-24
Abstract: A transverse fan assembly including a plurality of elongated fan blades arranged in a cylindrical array and a plurality of axially spaced and generally aligned discs of substantially uniform diameter. Each disc defines equidistantly spaced slots concentric with and inwardly of the disc periphery for allowing the blades to loosely pass therethrough. Each blade is individually attached to a disc by a blade retainer which, in response to an individual twisting action upon the blade, releasably and individually attaches the blade to the disc under a substantially constant and independent force in a manner allowing for removal or replacement of the blade without affecting other blades in the fan assembly.
Patent CA-2067333-C (CA)
Title: Production of genetically-engineered vaccines for aids and retroviral diseases
Inventor: HAYNES JOEL R
IPC: C12Q1/70
Filed: 1990-10-12
Granted: 2001-05-01
Abstract: An immunogenic retrovirus-like particle which is non-infectious and which is useful as a candidate vaccine component against retroviral infections, including AIDS and ATLL, is produced by genetic engineering.
Patent CA-2072508-C (CA)
Title: High pressure, high solids coating process
Inventor: WALTRIP DONALD W
IPC: B05D1/02
Filed: 1992-06-26
Granted: 1998-11-17
Abstract: Disclosed herein is a process  for preparing and applying  a coating composition at extremely high pressures under  conditions which  significantly reduce  the  amount  of  volatile   organic materials which  are given  off during  the spray  process.   The spray process involves filling a  spray pump receptacle with  the coating wherein the  spray pump  is operable  at pressures  above about  2,750  psi  and  wherein  the  pump  is  provided  with  a temperature control means  for assuring that  the temperature  of the pumped coating is in the range of about 65°F to 120°F so that the viscosity of the pumped coating is maintained in the range of about 250  to about  1,000 cps.   The resulting  coatings may  be applied as  a top  coat,  sealer, lacquer,  etc. to  any  desired substrate,  although  wood  is  preferred,  with  the   resulting finished coating  being equal  or  superior to  existing  coating compositions.
Patent CA-2079226-C (CA)
Title: Preparation of 1,3-disubstituted imidazolium salts
Inventor: ARDUENGO ANTHONY JOSEPH III
IPC: C07D233/64
Filed: 1991-02-14
Granted: 2002-12-03
Abstract: A process is disclosed for the preparation of a 1,3-disubstituted imidazolium salt having the following formula:   (see formula 1) comprising contacting an .alpha.-dicarbonyl compound of formula (see formula 2) an aldehyde of the formula R2CHO, one or more amines of the formula R1NH2, and an acid of the formula H n X. Each R1 is hydrocarbyl, or substituted hydrocarbyl;  R4 and R5 are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl; X is an anion; and n is an integer corresponding to the number of anionic charges on X. The 1,3-disubstituted imidazolium salts are useful as synthetic intermediates, polymer precursors and pharmaceuticals.
Patent CA-2085876-C (CA)
Title: Production of ethylene oxide
Inventor: JENNINGS JAMES ROBERT
IPC: C07D303/04
Filed: 1991-06-18
Granted: 2002-09-24
Abstract: A gas stream from a reaction in which ethylene oxide is produced by reacting ethylene with oxygen which gas stream com-prises oxides of nitrogen and steam the gas stream is cooled to condense water, condensed water is removed, and ethylene oxide is then recovered from the gas stream. A substantial amount of the oxides of nitrogen is removed from the gas stream during the condensation.
Patent CA-2089170-C (CA)
Inventor: APPLEBY DONALD B
IPC: C07C67/08
Filed: 1991-08-29
Granted: 2000-12-05
Abstract: Polyesters de polyol utiles en tant que succédanés gras non digestibles préparés par des procédés améliorés d'interestérification hétérogène entre des esters d'acides gras d'alcool et de polyol facilement séparables, caractérisés par le fait qu'ils ont été l'objet d'une ou plusieurs améliorations telles que l'utilisation de faibles quantités d'agent émulsifiant savonneux, de catalyseur et/ou d'ester d'acides gras excédentaire, la réduction de la taille du polyol par des moyens mécaniques, l'évacuation des matières particulaires étrangères pendant la réaction, l'utilisation de températures basses et/ou de hautes pressions et la compensation par augmentation de la zone de transfert de matière, et/ou l'utilisation du mélange à contre-courant dans le(s) stade(s) initial(aux et des conditions d'écoulement idéal dans le(s) stade(s) final(aux).
Patent CA-2089640-C (CA)
Title: Dispensing closure for squeeze bottle
Inventor: PERLMUTTER THOM M
IPC: B67D3/04
Filed: 1991-08-19
Granted: 1997-01-28
Abstract: A liquid dispensing closure mechanism installable on the neck portion of a plastic squeeze bottle to control the out-flow of liquid from the bottle. In one form of the dispensing closure, a movable closure body (26) has an open position and a closed position in which closed position the closure body fits tightly on the associated cap member (10). In another form of the dispensing closure, the movable closure body has two closed positions, in one of which the closure body (26) fits tightly on the associated cap member (10), and in the other of which it fits loosely on the cap member, whereby it is readily movable to the open position with only slight manual effort. A twist lock feature (41, 45) is preferably utilized where a gas-tight seal is of major importance, as for containment of carbo-nated beverages.
Patent CA-2089774-C (CA)
Title: Computer game device
Inventor: TSUMURA MIHOJI
IPC: G07F17/32
Filed: 1993-02-18
Granted: 2004-06-08
Abstract: The invention is directed to a computer game device for downloading game programs from a transmission device including a transmission computer. The computer game device comprises a computer game device terminal connected by a communication channel to a host computer in which a plurality of game data are stored in the form of a database. The host computer includes a CPU that processes data in accordance with a program and controls peripheral equipment, a visual display unit that displays the contents of games, a RAM into which data transmitted from said host computer is written, input keys which can be used for a variety of purposes such as the selection of the required game from the game menu transmitted from said host computer, and a coin input unit, into which the charge appropriate to each game can be input. The computer game device terminal accepts input signals generated using the keys when an appropriate coin has been input into the coin input unit. The input keys include a suspension key, the use of which during the course of an unfinished game causes the game to be suspended at that point and a password appropriate to that suspension point to be displayed on the visual display unit. The password is entered for continuing the game at a later point in time. With this arrangement games are easily suspended and can be resumed by entry of the appropriate password.
Patent CA-2096528-C (CA)
Title: Retroviral protease inhibitors
Inventor: TALLEY JOHN JEFFREY
IPC: C07D413/12
Filed: 1991-11-18
Granted: 2005-12-06
Abstract: Compounds represented by formula (I) or a pharmaceutically acceptable salt, prodrug or ester thereof, wherein A represents radicals represented by formulae (A 1, A2, A3) (values for the variables given herein), are effective as retroviral protease inhibitors, and in particular as inhibitors of H1V protease.
Patent CA-2097281-C (CA)
Title: Pump actuator
Inventor: BACHAND GEORGE
IPC: B05B11/00
Filed: 1993-05-28
Granted: 1995-08-01
Abstract: Apparatus for dispensing a cosmetic or the like from a container having a pump with an operating stem with a free end extending above the container, through which material is dispensed from the container by movement of the stem, is formed of a shroud member and an actuator.  The shroud member is mounted on the container with the operating stem extending into its tubular outer wall and the actuator is mounted in the shroud with a cylindrical outer surface in slidable engagement with the inner surface of the shroud tubular outer wall and engageable with the operating stem to pump material from the container through a conduit in the actuator to an outlet disposed above an inwardly extending recess in the shroud member tubular outer wall.
Patent CA-2104330-C (CA)
Inventor: DOANE IVAN G
IPC: B41F17/02
Filed: 1993-08-18
Granted: 2005-11-08
Abstract: Multiple part documents in which each part has common non-variable information and variable information are produced at high speed with a minimum amount of equipment. Utilizing either sequential press technology or large diameter plates, the multiple parts of the document are sequentially printed on a single web with the non-variable information. The variable information is sequentially printed on the same web in a procedure distinct from the printing of the non-variable information, typically utilizing a single ion deposition printer for each face of the web. The parts are separated and intelligently gathered and then the parts are sealed together to form a document, along one edge, by applying glue, or pressure seal adhesive. After sealing the documents may be rotated and delivered to a carrier web.      Alternatively, an outer wrapper or envelope, variably imaged by another ion deposition print engine, may be provided around the multiple part document's after sealing.
Patent CA-2105511-C (CA)
Inventor: NETTER PAUL L
IPC: A47J27/00
Filed: 1993-09-03
Granted: 2003-01-07
Abstract: This invention is directed to the production of borosilicate glasses displaying a pink coloration and a chromaticity at a thickness of 4 mm with Illuminant C within the ranges of: x = 0.3115-0.4200 y = 0.3170-0.3600 Y = 15-92%    The glasses consist essentially, expressed in terms of weight percent on the oxide basis, of SiO2 ~65-85 ~Na2O+K2O~2-8 B2O3~~ <20 ~Al2O3 ~~1-6 Na2O~~ 0-8 ~MnO2 ~~0.05-1 .    R2O~~ 0-8
Patent CA-2109178-C (CA)
Inventor: SCHUTZE DETLEF-INGO
IPC: D21H19/62
Filed: 1993-10-25
Granted: 2004-04-27
Abstract: The invention relates to coating compositions comprising (A) a polyurethane based on a polyisocyanate, a diol having an average molecular weight of from 350 to 5000, and a chain lengthening agent having a molecular weight of from 32 to 349, wherein said polyurethane (A) contains ionic groups in a quantity of from 0.1 to 75 milliequivalents per 100 g of polyurethane (A) and more than 6 to 50% by weight, based on polyurethane (A), of polyethylene oxide units (-CH2CH2 0)n- having a sequence length n of from 2 to 50 incorporated into the main chain, and (B) from 30 to 80% by weight, based on the sum of components (A) and (B), of an aqueous phase.
Patent CA-2116630-C (CA)
Title: Improved mixer
Inventor: BRADSHAW JOHN JAMES
IPC: B28C5/00
Filed: 1994-02-28
Granted: 2005-06-28
Abstract: The invention provides apparatus for use in the preparation of gypsum products such as plasterboard from foamed gypsum plaster slurry. The apparatus comprises a first mixing chamber containing a high speed rotor 14 and inlets for 18, 19 for gypsum plaster and water. The initial dispersion of gypsum plaster and water foamed in the first chamber passes directly and continuously into a second chamber 25 containing a low speed rotor 29. Preformed foam is introduced into the second chamber through an inlet 33, and the foamed slurry product leaves the second chamber through an outlet 34, to be formed into plasterboard.      A method of making gypsum products from foamed gypsum plaster slurry is also disclosed.
Patent CA-2118463-C (CA)
Title: Method of producing sodium hydroxide from white liquor
Inventor: KURITTU HANNU
IPC: D21C11/00
Filed: 1994-10-19
Granted: 2005-10-18
Abstract: The present invention relates to a method at processing white liquor obtained from the causticization stage of a pulp mill. According to the method, the white liquor, which principally contains sodium hydroxide (6) and sodium sulfide, is oxidized into polysulfide liquor (3), whereby the sodium sulfide is oxidized most advantageously with the help of a catalyst and an oxidizer such as air substantially into sodium poly-sulfide (7) and sodium thiosulfate. The method according to the invention is characterized in that the sodium hydroxide (6) contained in the white liquor is separated from the white liquor prior to the oxidizing step or from the polysulfide liquor (3) after the oxidizing step either entirely or partly by means of a diffusion dialysis process (4). The invention is further characterized in that the sodium hydroxide (6) separated from the white liquor is returned to the chemical circulation of the pulp mill.
Patent CA-2118731-C (CA)
Inventor: STAHL THOMAS ANTHONY
IPC: H04M1/82
Filed: 1994-03-10
Granted: 1997-11-18
Abstract: Telephone line status indication is improved by making measurements of the differential voltage across the Tip-Ring terminals of a telephone set (100). The telephone set is connected to a telephone line which is shared with other parallel-connected telephone sets. The measurement of differential line voltage is made each time the set changes state (i.e., between on-hook and off-hook). The maximum magnitude of one of the last three measurements is stored to represent the on-hook state, and is arithmetically averaged with the maximum magnitude of one of the last three stored for the off-hook state to create a reference voltage. The reference voltage is updated each time the telephone set changes state and is continually compared with the present differential line voltage to determine which one is larger. A light-emitting-diode (110) on the telephone set indicates that the telephone line is in use whenever the reference voltage exceeds the measured differential line voltage.
Patent CA-2119145-C (CA)
Title: Ferrite particles and therapeutic and diagnostic uses therefore
Inventor: FILLER AARON G
IPC: A61K47/48
Filed: 1992-09-16
Granted: 2003-11-25
Abstract: Ferrite particles obtained by coprecipitation of ferrous and ferric salts from aqueous solution are free of hydrous oxides chelatable with EDTA and are coated with a biologically tolerable polymer. Also disclosed is a process for preparing such particles.
Patent CA-2119326-C (CA)
Title: Technique utilizing a rotating waveplate for reducing polarization dependent hole-burning in an amplified optical transmission system
Inventor: BERGANO NEAL S
IPC: H04B10/17
Filed: 1994-03-17
Granted: 1998-05-26
Abstract: A technique for reducing signal degradation and fading within a long optical transmission by utilizing a rotating waveplate arrangement to rotate the SOP of an optical signal launched into the transmission system, and thereby minimize polarization dependent hole-burning ("PDHB"). This effectively reduces the degree of polarization of the launched optical signal, without degrading the noise and dispersion characteristics of the signal. The rate of waveplate rotation is chosen to ensure that the SOP of the launched signal does not remain at a particular SOP long enough to anisotropically saturate any optical amplifier employed within the transmission system, and give rise to PDHB.
Patent CA-2121748-C (CA)
Inventor: NICOLAI NORBERT
IPC: H01B19/04
Filed: 1994-04-20
Granted: 1999-02-09
Abstract: A process to increase resistance to tearing in a heat-resettable material is described, followed by extruding a polymer of a specified crosslinking density to produce a plastic web. After cooling the plastic web is heated by creating a  temperature  decreasing  towards  its  core  and stretched at  core  temperature below crystalline melting temperature of partially crystalline and crystalline polymers resulting in a distribution of orientation over the full section of the plastic web. Resistance to tearing will be essentially increased in this manner based on a simple, low-cost production process.
Patent CA-2124126-C (CA)
Title: Monoclonal antibodies and fv specific for cd2 antigen
Inventor: DIEGEL MICHAEL L
IPC: A61K47/48
Filed: 1994-05-24
Granted: 2007-10-16
Abstract: An anti-CD2 monoclonal antibody according to the present invention can be: (1) a chimeric monoclonal antibody CD2 SFv-Ig produced by expression of the construct cloned in recombinant Escherichia coli culture ATCC No. 69277; (2) a monoclonal antibody having complementarity-determining regions identical with those of CD2 SFv-Ig; or (3) a monoclonal antibody competing with CD2 SFv-Ig for binding to CD2 antigen at least about 80% as effectively on a molar basis as CD2 SFv-Ig. Anti--CD2 monoclonal antibodies according to the present invention, as well as other antibodies that can modulate the interactions between T lymphocytes and monocytes, can be used to inhibit the production of HIV-1 by HIV-1--infected T cells in HIV-1-infected patients. In another use, T cells treated in vitro can be reinfused into AIDS patients to increase the proportion of functional, non--HIV-1-producing T cells in the patient.
Patent CA-2134255-C (CA)
Title: Dropped-form document image compression
Inventor: GRAF HANS PETER
IPC: G06K9/20
Filed: 1994-10-25
Granted: 1999-07-13
Abstract: The present invention provides a method and apparatus for compressing images of financial instruments and other documents.  The method of the present invention includes the steps of scanning a plurality of documents to obtain an electronic image of each document;  identifying a static portion in the electronic image of each of the documents, containing information which remains substantially unchanged for the plurality of documents, by locating and reading a document identifier in the image;  storing the document identifier in a database; identifying a dynamic portion, typically containing distinct information for each of the documents, in each of the electronic images; isolating the dynamic portion from the static portion within the image to obtain a dynamic image containing only the dynamic portion; and storing the dynamic image in the database.  The present invention provides efficient techniques for identifying and isolating  dynamic  information  in  a  document,  such  as handwritten text on a check.
Patent CA-2141320-C (CA)
Inventor: SUTHERLAND ROBERT L
IPC: B65D71/22
Filed: 1994-06-20
Granted: 2005-05-03
Abstract: L'invention concerne un moyen de maintien de bouteilles à fond pétaloïde (B) en place dans un support enveloppant. les ouvertures des panneaux latéraux comportent des volets (70) connectés au panneau latéral (34) par des lignes de pliage (64) qui sont courbées vers l'intérieur dans leurs parties supérieures. Les parties inférieures de chaque paire de volets s'étendent l'une vers l'autre de manière à venir au contact d'un ou plusieurs des pieds de support de la bouteille adjacente et être poussées ainsi vers l'extérieur hors du panneau latéral (34). La partie courbe des lignes de pliage pousse les volets contre les pieds de support, quelle que soit la partie des pieds venant au contact des volets, pour aider à maintenir les bouteilles en place dans le support. Les lignes de pliage (76) s'étendant depuis les bords des volets jusqu'à leurs lignes de pliage et des fentes (80) en forme de crochets aux extrémités supérieures des volets permettent aux volets latéraux de fléchir dans le sens de la longueur.
Patent CA-2142178-C (CA)
Title: Method for manufacturing of a multilayer microwave board and boards obtained on the basis of this method
Inventor: HUMMELINK EDWIN JOHANNES HENDR
IPC: H01P11/00
Filed: 1995-02-09
Granted: 2007-04-03
Abstract: Method for manufacturing a multilayer microwave board in one operation. Individually etched layers of a laminate, such as duroid, are bonded to form a package and drilled after which the resulting holes are plated. Next, the superfluous connections are removed by drilling during which process each stripline-coax transition buried in the package is tuned by a correct selection of the drill diameter and the hole depth.
Patent CA-2143012-C (CA)
Title: Endoscopic suture system
Inventor: GORDON NORMAN S
IPC: A61B17/00
Filed: 1995-02-21
Granted: 2002-12-10
Abstract: A method and device for the placement of sutures and for the purpose of approximating tissue. A particular utility is effected in the approximation of the tissue separated by means of an endosurgical trocar being inserted into a body cavity. The invention provides for the loading of suture material including needles into the device, introduction and placement of the device into the body cavity, with the distal end having deployable needle guides, extending the needle guides either simultaneously or individually to the periphery of the wound, engaging the wound with the needle guides, driving the needles and suture material through the tissue to be approximated into a catch mechanism, retracting the needle guides and withdrawing the device, leaving a loop of suture material in the margin of tissue. The suture may then be tied to approximate the wound and excess suture material cut off.
Patent CA-2143127-C (CA)
Inventor: SEPPAENEN REIJO
IPC: B01J23/96
Filed: 1995-02-22
Granted: 1999-07-20
Abstract: The invention relates to a method for regenerating a hydrogenation catalyst employed in the production of hydrogen peroxide,  being  characterized  in  that  the catalyst to be regenerated is treated with an oxidized working solution used in the production of hydrogen peroxide.
Patent CA-2149058-C (CA)
Title: Enhanced oxidation of organic chemicals
Inventor: KINGSLEY JEFFREY PAUL
IPC: B01F7/00
Filed: 1995-05-10
Granted: 1998-07-28
Abstract: Organic chemical oxidation reactions are carried out using pure or nearly pure oxygen and evaporative cooling.  Advantageous operating results are achieved thereby, and the oxidation of organic chemicals resulting in the production of solid products or byproducts is facilitated by obviating the need for direct contact heat exchange surfaces that become coated with solid products or byproducts.
Patent CA-2152284-C (CA)
Title: Condensed benzo(d)isoxazole derivatives and their use as psychoactive agents
Inventor: BOYD EDWARD ANDREW
IPC: A61K31/535
Filed: 1993-12-07
Granted: 2006-01-17
Abstract: Compounds of formula (I), in which X represents a group (a), (b), (c) or (d) wherein R is hydrogen, C1-6 alkyl, phenyl or C7-12 phenalkyl, R1 and R2 each represent hydrogen or together represent an oxo group and R3, R4 and R5 each represent hydrogen or R1 represents hydrogen and two of R2, R3, R4 and R5 together represent the second bond of a double bond joining positions 7 and 8, 8 and 9 or 9 and 10 with the remaining two of R2, R3, R4 and R5 representing hydrogen, the compound optionally being in the form of a salt thereof formed with a physiologically acceptable inorganic or organic acid, an of value for the treatment of anxiety and in the improvement of learning ability and/or the reversal of amnesia.
Patent CA-2158531-C (CA)
Title: Clock recovery for atm receiver
Inventor: TAN HAN HIONG
IPC: H04Q11/04
Filed: 1995-09-18
Granted: 2000-04-11
Abstract: Clock recovery circuit for an ATM receiver. Automatically derive the frequency of the source signal which is transmitted by the ATM cells. A subcircuit (3, 4, 5) determines, on the basis of the cell rate, the nominal bit rate of the source signal and generates a clock signal having a frequency which is consistent therewith. A second subcircuit (6, 7, 8, 9, 10) corrects, in proportion to the difference between the nominal bit rate and the mean actual bit rate, the frequency of the clock signal generated by the first subcircuit.