baber/WOPTO huggingface dataset:
Patent CA-2155518-A1 (CA)
Title: Pharmaceutical compositions comprising a spongy material consisting of ester derivatives of hyarulonic acid combined with other pharmacologically active substances
Inventor: PERBELLINI ALBERTO
IPC: A61L27/00
Filed: 1994-02-02
Abstract: The present invention relates to new pharmaceutical compositions comprising  a spongy material consisting of total or partial ester derivatives of hyaluronic acid, either singly or as a mixture thereof, co-lyophilized with a solution containing other pharmaceutically active substances, the process for their production, and the use of same in surgery and in particular in microsurgery.
Patent CA-2155626-A1 (CA)
Title: Method for a program-package change in a multicomputer system, and computer therefor
Inventor: URBAN HANS-JUERGEN
IPC: G06F8/656
Filed: 1995-08-08
Abstract: A method for a program-package change in a multicomputer system (MRS) and a computer (PR1) for the multicomputer system (MRS) are disclosed. During the program-package change, the interruption of the processes being controlled by the multicomputer system (MRS) is to be kept as short as possible. In addition, for reasons of security, fallback on operation of the multicomputer system (MRS) with the replaced, old program package is to be possible.            According to the invention, each computer (PR1, ..., PRN, SR) of the multicomputer system (MRS) has in its main memory (RAM1) an area (PPN) in which the new program package is stored before the actual replacement procedure begins. During the program-package change, each of the computers (PR1, ..., PRN, SR) is loaded with the new program package from its main memory (RAM1).
Patent CA-2155640-A1 (CA)
Title: Peristaltic pump module having jaws for gripping a peristaltic pump tube cassette
Inventor: DIPERNA PAUL
IPC: A61M1/36
Filed: 1994-03-17
Abstract: A peristaltic pumping apparatus includes a peristaltic pump rotor (298) and pump race (296). A pump tube holder (250) includes a body for supporting a flexible tubing loop (134, 136) in an erect, outwardly bowed position for placement within the pump race and for removal from the pump race. A surface juxtaposed the peristaltic pump rotor and race carries a gripping jaw assembly (270). The gripping jaw assembly opens to receive the pump tube holder body as the body is moved toward the pump rotor to place the tubing loop within the pump race. The gripping jaw assembly closes to secure the pump tube holder body on the surface in an orientation in which the tubing loop lies within the pump race for engagement with the peristaltic pump rotor.
Patent CA-2156657-A1 (CA)
Inventor: BEAUCLERC RICHARD G
IPC: B61G7/10
Filed: 1995-08-22
Abstract: When slack-free railcar connector assemblies are placed under very high tensile loading, the connector assembly components will stretch and allow a typical "rigid" gravity wedge to descend into a fully seated position between the components and lock-in the tensile loads. The locked-in loads become additive in nature when successively encountered compressive loads are experienced by the connector assembly, thereby increasing the lateral drawbar angling forces, as well as accelerating coupling component wear. The wedge component of the present invention includes a means for vertically supporting and retaining the wedge in a holding position slightly above the normally fully seated position during the tensile loading, thereby eliminating the build up of tensile forces in the connector assembly.
Patent CA-2157339-A1 (CA)
Inventor: WARD WAYNE L
IPC: B60B35/10
Filed: 1995-08-31
Abstract: A tie rod extendable and retractable telescopic axle assembly wherein a pair of axle beams are slidably mounted in a box beam integral with a vehicle chassis.   Steering linkage and associated wheel assemblies are mounted on the outer ends of the axle beams, and the inner ends of the axle beams within the box beam are telescopically mounted relative to each other which provides an increased wheel base when the axle beams are moved outwardly of the box beam.   A hydraulic cylinder and piston rod assembly is mounted between the box beam and wheel assemblies so that the hydraulic cylinder and rod assembly function not only as an actuator for extending and retracting the axle beams but also as a tie rod for the wheel assemblies.
Patent CA-2159740-A1 (CA)
Title: Method of estimating product distribution
Inventor: FELTHAUSER MARK ANDREW
IPC: G06Q30/00
Filed: 1994-04-05
Abstract: Sales activity of a product at sales outlets including sales outlets at which sales activity data is sampled (110-1 to 110-3) and unsampled sales outlets (110-4 to 110-5) is estimated by determining the distance between each of the sampled sales outlets and each of the unsampled sales outlets (step 330) and correlating sales activity data from the sampled sales outlets according to the determined distances. The sales activity volume of the product at the plurality of sampled outlets and the estimated sales activity volume of the product at the unsampled outlets are combined to obtain an estimate of sales activity for all the sales outlets (step 375). Sales activity of products prescribed by a physician at both the sampled and unsampled outlets can be estimated by correlating sales activity data for the prescribing physician at the sampled outlets according to the distances between the sampled outlets and the unsampled outlets.
Patent CA-2161924-A1 (CA)
Inventor: DIAMONDIS PETER J
IPC: G01N23/00
Filed: 1995-11-01
Abstract: A radon detector employs an electrically charged pressed, porous metal filter that allows radon gas diffusion, while blocking ambient light, so that it readily traps both attached and unattached Po-214 and Po-218 ions, that may be present in gas passing through the filter, the filter being charged positively relative to an unbiased PN junction of a photodiode detector within a detection chamber. As a consequence, radon daughter products are prevented from corrupting the radon measurement. Since no voltage differential is applied across its PN junction, the photodiode detector operates in a photovoltaic mode, which avoids the problem of Schottky noise, producing low amplitude current pulses, which are amplified, passband filtered and thresholded to provide well-defined pulses that are counted over a given measurement interval and converted to radon concentration in terms of picocuries per liter.
Patent CA-2162409-A1 (CA)
Title: Tubing tightener
Inventor: JANI WILLIAM
IPC: E21B19/16
Filed: 1995-11-08
Abstract: A tubing tightener which is readily adaptable to either clockwise or anti-clockwise rotational setting operation and which uses a series of drag slips having integral drag and slip surface regions. The drag surface regions are substantially smooth and are advanced into contact with a wellbore with the slip surface regions retracted, when the tightener is in its unlocked orientation. The slip surface regions are serrated to provide a positive engagement with the wellbore and are advanced into engagement with the wellbore with the drag surface regions retracted, when the tightener is in its locked orientation. The drag slips are caused to rock about a point of contact between the drag slip surfaces and the wellbore, located intermediate the drag and slip surface regions, in order to advance the appropriate surface region of each drag slip into engagement with the wellbore. The invention provides for a compact, lightweight construction with improved reliability and increased bypass around the tightener.
Patent CA-2165028-A1 (CA)
Inventor: GILBERT SYLVAIN
IPC: A01G23/083
Filed: 1995-12-12
Abstract: The mechanism is used for rotating a tree-felling implement rotatably connected to a distal end of a boom of  a  logging  vehicle  by  an  implement  pivot.  The mechanism  comprises  a  first  arc-shaped  member  that extends in a plane perpendicular to the boom plane and is convex with reference to the implement pivot. The first member has a first end rotatably connected to the frame of the implement at a given distance from the implement pivot. A second arc-shaped member, coplanar with the first member, is also convex with reference to the implement pivot. The second member has a first end rotatably connected to the second end of the first member for defining an intermediary junction,  and a second end rotatably connected to the distal end of the boom. A hydraulic actuator is mounted on the frame of the implement and has an end rotatably connected to or adjacent to the intermediary junction for rotating the implement  during  operation  of  the  actuator.  The mechanism provides a simple and reliable construction for rotating a tree-felling implement that is capable of rotating the implement with reference to the boom plane in both directions and according to a wide range of angles.
Patent CA-2165130-A1 (CA)
Title: Use of 5-acyl-1,4-dihydropyridines
Inventor: URBAHNS KLAUS
IPC: C07D211/82
Filed: 1995-12-13
Abstract: The present invention relates to the new use of 1-alkyl-3,5-diacyl-1,4-dihydropyridines which are known in some cases, of the general formula (I)   (I), in which R1 to R4 have the meaning indicated in the description, processes for their preparation and their use as medicaments, as selective potassium channel modulators, in particular for the treatment of the central nervous system.
Patent CA-2166776-A1 (CA)
Inventor: QUAGGIO SAULO
IPC: B60W30/18
Filed: 1994-07-05
Abstract: Computer controlled gearshift with automatic clutch actuator for vehicles with manual gearboxes, composed of servo mechanisms, electric sensors, magnetic sensors, resistive potentiometers' sensors, electric actuators, all of them connected to and controlled by a central microprocessor controller unit (8), that by its turn perform a special set of instructions in order to automate all gearshift and clutch actuations in a manual gearbox equipped vehicle, in such a way to enable it to perform like an automatic transmission vehicle without the loss of efficiency of a hydraulic one and less costly, too, maintaining the vehicle manufacturer original motor-wheels transmission specifications, and it is further composed with a servo mechanism clutch movement action controlled by a central microprocessor controller unit (8) that can precisely adjust the clutch positioning in any selected point of its traval range by supplying through a digital-to-analog converter (9) output an analog signal to a non-inverting input of an electronic summing circuit (10) that by its turn is further fed in its other two inverting inputs with feedback signals coming from the clutch servo motor axis rotation, one proportional to the axis angular position taken from the resistive potentiometer (7) and the other to the angular speed it is rotating, which electronic summing circuit result is fed to a power amplifier (11) that drives the direct current motor (1) in one of the two possible directions of rotation, and the embodiment described up to this point is labeled as A block that by its turn belongs as a single component of a more complex servo mechanism that has other components: the gas pedal that controls the B block - Motor (vehicle propulsion engine) that supplies an M torque to the non-inverting input of a mechanical summing device (10') that when unloaded represents the inertia moment delayed vehicle motor axis rotation and at the vehicle start rolling process when a preset or threshold RPM (rotation-per-minute) level is achieved and detected at the electronic summing circuit (10).
Patent CA-2167060-A1 (CA)
Inventor: MUECK MICHAEL
IPC: H03G1/04
Filed: 1994-06-29
Abstract: Système comportant un convertisseur N/A et un circuit de calibrage et dont le convertisseur N/A comprend un circuit de contrôle de gain agissant sur le volume. Ledit système peut fonctionner soit en mode calibrage, soit en mode normal. Pendant le calibrage, un paramètre de correction associé au circuit de contrôle de gain est mesuré par le circuit de calibrage puis enregistré. Pendant le fonctionnement normal, les paramètres de correction sont combinés avec les valeurs entrées avant d'être transférés au convertisseur N/A, de façon à ce qu'en présence d'une entrée prédéterminée du code de mi-échelle, la sortie voulue reste constante indépendamment de toute variation du réglage du volume dans le circuit de contrôle de gain.
Patent CA-2177190-A1 (CA)
Title: Decorative receptacle
Inventor: CALLAHAN EDWARD
IPC: B65F1/14
Filed: 1996-05-23
Abstract: A decorative receptacle, such as a wastebasket, comprises a two-piece receptacle body formed of a tubular sidewall member and a base member releasably connected to the bottom of the tubular member, and a decorative cover removably disposed on the receptacle body and encircling the tubular sidewall member.  The tubular and base members are each one-piece, molded structures. The base member has an array of upstanding pins on its upper surface which frictionally fit in corresponding openings of the tubular sidewall member to releasably connect the two members together to form the receptacle body. The decorative cover has a tubular configuration and fits slidably over the outer surface of the tubular sidewall member. The opposite ends of the decorative cover are sandwiched between flanges at the top and bottom of the receptacle body.  Upon manual detachment of the base member from the tubular sidewall member, the decorative cover can be slid axially off of the tubular member and removed for cleaning, repair or replacement.
Patent CA-2178543-A1 (CA)
Title: Ultraviolet light intensity monitor
Inventor: BROWN JOHN FORBES
IPC: G01J1/50
Filed: 1996-06-07
Abstract: The present invention provides a personal, portable and self-powered ultraviolet light intensity (UVI) monitor and a method for determining the duration of safe exposure to the sun or, alternatively, the value of the sun protection factor (SPF) of a sun protection product required for a given duration of exposure to the sun. The monitor is a substrate imprinted with indicia and non-uniformly overlaid with photosensitive material.  Depending on the intensity of UV light to which the monitor is exposed, the photosensitive material changes physical characteristics and exposes some and conceals other indicia to indicate a duration of safe exposure to the sun for given conditions or the SPF value of the sun protection product used to be used, or both.
Patent CA-2179826-A1 (CA)
Title: Method of assay
Inventor: FRENGEN JOMAR
IPC: G01N33/543
Filed: 1994-12-23
Abstract: A binary assay method capable of providing wide dynamic range, a high degree of precision and rapid processing times in which analyte is reacted successively with two independently determinable forms of solid-supported binding partner and also with a labelled ligand having affinity for the analyte or binding partner, the analyte concentration being determined from signals deriving from the resulting two forms of analyte-binding partner-labelled ligand systems by reference to a double standard calibration curve. A kit for use in the method is also disclosed.
Patent CA-2180253-A1 (CA)
Title: Pyrazolopyridine adenosine antagonists
Inventor: AKAHANE ATSUSHI
IPC: A61P25/26
Filed: 1994-12-26
Abstract: The present invention relates to a novel pyrazolopyridine compound of formula (I) wherein R1 is aryl, and R2 is cyclo(lower)alkyl which may have one or more suitable substitutent(s), etc; and a pharmaceutically acceptable salt thereof, which is useful as a medicament. The pyrazolopyridine compound or a pharmaceutically acceptable salt thereof is an adenosine antagonist (especially, A1 receptor antagonist) and possesses various pharmacological actions.
Patent CA-2180503-A1 (CA)
Inventor: ELLIOTT CHARLES PERRY
IPC: B24C3/32
Filed: 1996-07-04
Abstract: A blast cleaning apparatus is provided having a rotatable conveying surface preferably comprising wire mesh. Workpieces are conveyed through the blast cleaning chamber on the rotating conveying surface such that workpieces may be added to and removed from the conveying surface at a single work station by one operator. Also provided is a method for providing a feed tube to a blast cleaning wheel located below the conveyor, wherein the feed tube is passed through a central hole at the axis of rotation of the conveyor.
Patent CA-2180551-A1 (CA)
Title: Herpesvirus replication defective mutants
Inventor: KNIPE DAVID
IPC: A61K39/00
Filed: 1995-01-09
Abstract: A herpesvirus vaccine comprising a mutated herpesvirus suspended in a pharmaceutically acceptable carrier. The mutated herpesvirus is capable of infecting cells of the mammal to be vaccinated, but incapable of completing a replicative cycle, and it is capable of eliciting a protective immune response in that mammal. The mutated herpesvirus is also capable of treating immunomodulatory or immunoregulatory diseases. The mutation occurs in at least one gene encoding a protein essential for replication of the virus, so that the mutation renders the virus replication defective.
Patent CA-2181413-A1 (CA)
Title: Process for the syndiotactic propagation of olefins
Inventor: MCGOVERN KEVIN P
IPC: C08F4/6192
Filed: 1996-07-17
Abstract: The invention provides a process for commercial production of syndiotactic polyolefins using a metallocene catalyst supported on silica treated with MAO. The invention includes contacting the supported metallocene catalyst with an aluminum alkyl and aging the catalyst prior to polymerization. In addition, the catalyst is prepolymerized in a tubular reactor prior to being introduced into the polymerization reaction zone.
Patent CA-2184763-A1 (CA)
Inventor: PAVLAKIS GEORGE N
IPC: C12P21/02
Filed: 1996-09-04
Abstract: The present invention is directed to mutants of the jellyfish Aequorea victoria green fluorescent protein (GFP) having at least 5 and preferably greater than 20 times the specific green fluorescence of the wild type protein. In other embodiments, the invention comprises mutant blue fluorescent proteins (BFPs) that emit an enhanced blue fluorescence. The invention also encompasses the expression of nucleic acids that encode a mutant GFP or BFP in a wide variety of engineered host cells, and the isolation of engineered proteins having increased fluorescent activity. The novel mutants of the present invention allow for a significantly more sensitive detection of fluorescence in engineered host cells than is possible with GFP or with its known mutants. Thus, the mutant fluorescent proteins provided herein can be used as sensitive reporter molecules to detect the cell and tissue-specific expression and subcellular compartmentalization of GFP or BFP mutants, or of chimeric proteins comprising GFP or BFP mutants fused to a regulatory sequence or to a second protein sequence.
Patent CA-2186782-A1 (CA)
Title: Process for producing long-shelf-life aqueous solutions of vinyl-amine-unit-containing polymers and use of such solutions
Inventor: NILZ CLAUDIA
IPC: C08F8/12
Filed: 1995-03-20
Abstract: A process for producing long-shelf-life aqueous solutions of vinyl-amine-unit-containing polymers by the hydrolysis of N-vinyl-carbonamide-containing polymers with acids in an aqueous medium and removing the carboxylic acids separated from the polymers as esters from the aqueous polymer solution following hydrolysis and by the addition of at least stoichiometric quantities of at least one C1 to C6 alcohol and distilling the esters off from the reaction mixture. The invention also relates to the use of the long-shelf-life aqueous solutions of vinyl-amine-unit-containing polymers as dry and wet consolidating agents in paper manufacture.
Patent CA-2190280-A1 (CA)
Title: Nano powder synthesis using hydrophilic organic media
Inventor: ONG ESTELA T
IPC: C01G25/02
Filed: 1996-03-13
Abstract: A process for producing nano size powders comprising the steps of mixing an aqueous continuous phase comprising at least one metal cation salt with a hydrophilic organic polymeric disperse phase, forming a metal cation saltpolymer gel, and heat treating the gel at a temperature sufficient to drive off water and organics within the gel, leaving as a residue a nanometer particle-size power.
Patent CA-2190365-A1 (CA)
Inventor: CHADER GERALD J
IPC: A61K35/30
Filed: 1995-06-06
Abstract: L'invention concerne des acides nucléiques codant pour la protéine neurotrophique connue sous le nom de facteur dérivé de l'épithélium pigmentaire (PEDF), une version tronquée du PEDF appelée RPEDF, et des protéines équivalentes, des vecteurs comprenant ces acides nucléiques, des cellules hôtes dans lesquelles ces vecteurs ont été introduits, des procédés de recombinaison pour produire PEDF, rPEDF, et des protéines équivalentes, la protéine de rPEDF et les protéines équivalents de rPEDF et PEDF -BP, -BX et BA, et la protéine de PEDF produite par des procédés de recombinaison. Sont également décrits les effets et les utilisations de ces variantes sur: 1) la différenciation neuronale (effet neurotrophique), 2) la longévité des neurones (effet neuronotrophique) et 3) l'inhibition gliale (effet gliastatique).
Patent CA-2190665-A1 (CA)
Inventor: KUBLI ROBERT ALFRED
IPC: G06F3/16
Filed: 1996-11-19
Abstract: An acoustic signal receiving apparatus comprising a housing having an acoustically reflecting surface and a directional acoustic sensor unit having first-order gradient characteristics. The sensor unit is coupled to the housing with use of a retractable member having a retracted position and an extended position. When the member is extended, the sensor unit is positioned relative to the reflecting surface such that the acoustic interaction between the sensor unit and the reflecting surface causes the output of the sensor unit to have second-order gradient response characteristics. In accordance with one illustrative embodiment, in a notebook computer with a "flip-back" lid, the sensor element automatically extends to the desired position when the lid is opened, and automatically retracts to be flush with the housing surface when the lid is closed.
Patent CA-2191221-A1 (CA)
Title: A conferencing system
Inventor: FLOWERS BRIAN GEORGE
IPC: H04L12/56
Filed: 1996-03-22
Abstract: A conference control station (10) is arranged to transmit signals on a first allocated satellite communication channel (SC1). A number of conference stations (20) forming at least one group is provided. Each conference station (20) of a group is arranged to transmit signals on one or more further communication channels allocated to the group with the number of further communication channels allocated to the group being small compared to the number of conference stations. Generally the communication channels are satellite communication channels. Access to the or the selected further communication channel is controlled by the conference station itself. Generally two further communication channels (SC2 and SC3) are allocated to a group of conference stations (20). Each conference station (20) of a group is arranged to receive signals on the first communication channel (SC1) allocated to that group from the control station (10) and on any of the number of further communication channels (SC2 and SC3) allocated to the group from the other conference stations (20) of that group. The control station (10) is arranged to receive signals on the further channels (SC2 and SC3) allocated to the or each group of the conference stations (20).
Patent CA-2192155-A1 (CA)
Title: Process for the purification of (rr-ss)-2-dimethyl-aminomethyl-1-(3-methoxyphenyl)cyclohexanol and its salts
Inventor: LERMAN ORI
IPC: C07C213/10
Filed: 1996-12-05
Abstract: The invention provides a process for the purification and isolation of (RR,SS)-2-dimethylaminomethyl-1-(3-methoxyphenyl)cyclohexanol from mixtures also containing the (RS,SR) isomer comprising reacting the above mixture in a solvent at elevated temperature under acidic conditions, whereby the (RS,SR) isomer is selectively converted to the (RR,SS) isomer, 1-(3-methoxyphenyl)-2-dimethylaminomethylcyclohex-6-ene, 1-(3-methoxyphenyl)-2-dimethyl-aminomethylcyclohex-1-ene or a mixture thereof, selectively precipitating the desired (RR,SS) isomer as an amine acid salt, and recrystallizing the purified product.