baber/WOPTO huggingface dataset:
Patent CA-2082740-A1 (CA)
Title: Controlled release device
Inventor: CHOPRA SHAM K
IPC: A61K31/435
Filed: 1992-11-12
Abstract: The invention relates to a device for the release of at least one active substance (e.g. ranitidine) into a fluid medium by dissolution comprising a covering, which is impermeable to the active substance and the fluid, having at least one aperture therein and defining a shaped cavity, the cavity being filled by a shaped core comprising the active substance, and wherein: a) on exposure of the device to the fluid medium, a surface of the core is exposed and dissolution of the surface by the fluid medium causes a change in at least one dimension of the area of the surface, whilst the surface area of the exposed surface remains substantially constant over at least 50% of the total dissolution time of the core; or b) the active substance is disposed in a matrix of an inert insoluble excipient, the device being axially symmetrical, with its aperture being peripherally disposed so that the release surface of core which is exposed through the aperture is substantially cylindrical or part of a cylinder in shape, whereby to allow substantially constant release of the active substance over at least part of the dissolution time; and processes for its preparation.
Patent CA-2083419-A1 (CA)
Title: Synthetic test circuits for short-circuit testing of high-voltage alternating current circuit-breakers, and triggered spark gaps for use in such circuits
Inventor: BLISS CHARLES ALAN
IPC: G01R31/02
Filed: 1992-11-20
Abstract: ABSTRACT        TRIGGERED SPARK GAP FOR USE IN SYNTHETIC TEST CIRCUITS        A triggered spark gap (TSG1) is provided for use in the high current circuit of a synthetic test circuit for short-circuit testing  of  high  voltage  alternating  current  power  transission circuit-breakers.    A  sealed  vessel  (1)  filled  in  use  with electro-negative gas has two inwardly projecting tubular contacts (21, 22) forming a spark gap between carbon nozzles (211, 221) at their  inner  ends  with  a trigger electrode  (23)  in one of the nozzles (221).  A pressure chamber to contain an arc initiated by the trigger electrode (23) includes a movable cylinder (30) closed at one end on to one of the contacts (21) and closed on to the other contact  (22)  via a fixed piston (40),  the cylinder  (30) carrying  a movable  contact  (50).    Arc  generated  gas  pressure expands  the pressure  chamber  so  that  the movable contact  (50) rapidly bridges the tubular contacts (21, 22) to short out the arc.    FIGURE NO.3
Patent CA-2083912-A1 (CA)
Title: Gear transmission with undulating surface clutch and brake element connections
Inventor: MALECHA GREGORY J
IPC: F16D41/00
Filed: 1992-11-26
Abstract: Abstract An improved gear transmission (10) includes a one-way clutch (52) for connoting together selec-tively two drive elements to establish a plural torque flow path through the transmission (10) and the clutch (52) includes at least one inner race (52B) and one outer race (52A), each of the races having concentric inner and outer race portions, the outer surface (112) of the outer race portion (52B) defined by a first undulating surface, the inner surface (113) of a mat-ing drive element defined by a second undulating sur-face in conjugate registration with the first undu-lating surface, the profiles of the first and second undulating surfaces (112,113) being controlled to provide a controlled clearance therebetween reducing shock loading at the interface of the inner and outer race portions through a gradual lock-up through a controlled wind-up of the mating members and reducing vibration in the gear elements.
Patent CA-2085299-A1 (CA)
Inventor: PEARCE HOMER L
IPC: C07F7/18
Filed: 1992-12-14
Abstract: Abstract 5-Deaza-10-oxo- and 5-deaza-10-thio-5,6,7,8-tetrahydrofolic acid derivatives are provided as agents useful for treating susceptible neoplasms in mammals. Pharmaceutical formulations and intermediates are also provided.
Patent CA-2085414-A1 (CA)
Title: Oil-demulsifiers based on an alkoxylate and preparation of this alkoxylate
Inventor: ELFERS GUENTHER
IPC: C10G33/04
Filed: 1992-12-15
Abstract: O.Z. 0050/42914 Abstract of the Disclosure:  Oil demulsifiers are based on an alkoxylate having a polydispersity of at least 1.7, and the alkoxylates are prepared using a metal alcoholate as a catalyst.
Patent CA-2089411-A1 (CA)
Title: Two stage membrane dryer
Inventor: PRASAD RAVI
IPC: B01D53/26
Filed: 1993-02-12
Abstract: TWO STAGE MEMBRANE DRYER            Abstract of the Disclosure This invention uses a first or roughing stage to remove the bulk of moisture and a second or polishing stage to complete the drying.  The first stage can use a relatively small membrane area and a relatively low quality purge gas whereas the second stage can use a large membrane area and high quality purge gas, such as some product back purge.  The arrangement provides efficient usage of available high quality purge gas, such as product, while minimizing product contamination.  This two stage purging arrangement is especially attractive for those processes or systems where multigrade purge gases are available.
Patent CA-2090810-A1 (CA)
Title: Process for trapping gaseous ruthenium on polyvinyl pyridine, more particularly usable for recovering radioactive ruthenium from irradiated nuclear fuels
Inventor: FOOS JACQUES
IPC: B01D53/02
Filed: 1993-03-02
Abstract: DESCRIPTIVE ABSTRACT           The invention relates to a process for trapping gaseous ruthenium on polyvinyl pyridine, more particularly usable for recovering radioactive ruthenium from irradiated nuclear fuels.        This process consists of contacting a gas containing ruthenium in gaseous form with an adsorbent (11b) constituted by a vinyl pyridine polymer or copolymer for fixing the ruthenium to the latter.  The gas can be constituted by vapours from a concentrate of fission products containing ruthenium, which has been heated (at 31) in the presence of an oxidizing agent for volatilizing the ruthenium.            (Fig. 1) B. 10821 MDT
Patent CA-2091168-A1 (CA)
Title: Container for Refrigerated Dough and Method of Forming a Refrigerated Dough Product
Inventor: MCDILDA JOSEPH C
IPC: B31B50/59
Filed: 1992-01-03
Abstract: A container (20) for vacuum packing refrigerated dough (18) and amethod of forming a refrigerated dough product is disclosed. A method of forming a refrigerated dough product using a spiral wound composite container (20) of the present invention is also disclosed.
Patent CA-2092897-A1 (CA)
Title: Triple-wall tubular element
Inventor: MAILLOUX JEAN
IPC: F16L9/12
Filed: 1993-03-29
Abstract: ABSTRACT OF THE DISCLOSURE           The disclosure herein describes a triple-wall tubular  element  that  comprises  a  thin  outer  layer composed of a non-recycled thermoplastic material having a thickness in the neighbourhood of 10% of the wall thickness of the tubular element,  a thin inner layer composed of non-recycled thermoplastic material having a thickness  in  the  neighbourhood  of  5%  of  the  wall thickness  of  the  tubular  element,   and  a  thick intermediate layer sandwiched between the inner and the outer layers, the intermediate layer being composed of recycled thermoplastic material.
Patent CA-2095733-A1 (CA)
Title: Method of forming and reforming a plastic composite
Inventor: BLACKMORE RICHARD D
IPC: B29C65/34
Filed: 1992-09-11
Abstract: A lining (10) and method for in situ rehabilitation of a pipe is disclosed. The lining comprises a tubular shaped resin impregnated composite (20) having a conductive layer surrounding an inflatable bladder (30). The method comprises the steps of positioning the lining (10) within a pipe section, inflating the bladder (30) until the lining is in contiguous contact with the interior of the pipe and inducing an electric current through the conductive layer (24) to resistively heat the lining and cure the impregnated resin. A method of reforming a composite part, such as a pipe lining, is also enclosed. The reforming method comprises heating a composite having a thermosetting resin which has been allowed to cure sufficiently so that the resin goes into an elastic state.  Pressure is then applied to reform at least a portion of the composite part while the resin is in the elastic state.
Patent CA-2100038-A1 (CA)
Inventor: CLOONAN THOMAS J
IPC: H04L12/56
Filed: 1993-07-07
Abstract: A growable packet switching arrangement where the distribution network (23) blocking probability is substantially reduced because the network has both switch links and chute links, and the network nodes (e.g. 30) include both a switching means (40) interconnecting successive stage switch links and a plurality of non-switching, chute connection means (50) interconnecting successive stage chute links. A network node can transfer a packet, being received on a switch link, to any selected one of the chute connection means of that node for transmission on a chute link. The network nodes are relatively simple and inexpensive because they store only the first few bits needed to route an ATM cell. The blocking probability is further reduced when the number of chutes per node is increased. The number of chutes may be based, for example, on the number of switch link inputs per node. <IMAGE>
Patent CA-2102157-A1 (CA)
Title: Anilox coater with brush
Inventor: PERSON STEVEN M
IPC: B41F31/14
Filed: 1993-11-01
Abstract: Air bubbles entrapped within the cells (72) of an engraved applicator roller (58) are displaced from the cells by wiping the engraved surface (60) of applicator roller with the bristles of a brush (106). As the engraved applicator roller (58) rotates in contact with the liquid coating material in the doctor blade reservoir (82), the bristles of the brush (106) puncture the entrapped air bubbles and sweep the entrapped air away from the cells. the elongated brush (106), which extends from one end of the doctor blade head (88) to the other, blocks the transfer of dispersed air bubbles from the liquid material in the upper reservoir chamber (102B) above the brush to the lower reservoir chamber (102A) below the brush where the cells axe being filled with the liquid coating material.
Patent CA-2102323-A1 (CA)
Title: Automating bricklaying
Inventor: MILNE W WARREN
IPC: E04G21/22
Filed: 1993-11-03
Abstract: ABSTRACT OF THE DISCLOSURE Bricklaying equipment includes a guideway extending along brick masonry being erected. A bricklaying machine displaces along the guideway. It has a robotic arm with an upper arm and a forearm. The upper arm pivots about a shoulder joint, and the forearm pivots relative to the upper arm at an elbow joint. A wrist joint permits a tool assembly, including a mortar-dispensing mechanism and a brick-gripping mechanism, to pivot relative to the forearm. The mortar-dispensing mechanism includes a form that receives and shapes a mortar charge, and a sliding gate mechanism that discharges the shaped charge. The arm is operated with a single motor that pivots the upper arm. Linkage constrains the tool assembly to move along a horizontal axis as the upper arm pivots and to remain in a fixed angular orientation relative to vertical. The arm is operated in response to sensors that detect vertical and horizontal distances to a mason's line. Brick and mortar carriers are also mounted to the guideway, and travel between loading areas and brick-and mortar-transferring positions relative to the bricklaying machine.
Patent CA-2103174-A1 (CA)
Title: Semiconductor device and method of manufacturing the same
Inventor: INADA HIROSHI
IPC: H01L21/02
Filed: 1993-11-16
Abstract: TITLE OF THE INVENTION  SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME          ABSTRACT OF THE INVENTION      A semiconductor device such as a semiconductor acceleration sensor of an electrostatic capacity type and a method of manufactur-ing the same are disclosed, wherein a silicon layer is bonded to first and second glass layers by means of an anodic bonding process in such a manner as to be positioned between the first and second glass layers. The first glass layer has an overhung portion pro-truded from an edge of the second glass layer. At least an inter-connection is formed between the silicon layer and the first glass layer and has a bonding pad positioned on the inner surface of the overhung portion of the first glass layer. Before the anodic bond-ing process, an anodic-bonding-inhibition layer such as aluminum layer is positioned between a second glass wafer forming the second glass layer and a silicon wafer forming the silicon layer, and faces to a predetermined portion of a first glass wafer forming the first glass layer. The predetermined portion of the first glass wafer is to be the overhung portion of the first glass layer. During a dicing process after the anodic bonding process, the second glass wafer is cut along the configuration of the anodic-bonding-inhibition-layer, thereby removing an unnecessary portion of the second glass wafer facing to the overhung portion of the first glass layer from the remaining portions of the second glass wafer.
Patent CA-2107115-A1 (CA)
Title: Heterocyclic amines useful in the therapy of asthma and inflammation of the respiratory tract
Inventor: LONG GIORGIO
IPC: A61K31/54
Filed: 1992-04-01
Abstract: Compounds of formula (I) wherein X, Y, A, B and D have the meanings reported in the specification, are useful in the treatment of asthma and other pathologies of the respiratory tract.
Patent CA-2108041-A1 (CA)
Title: Targeted drug delivery via mixed phosphate derivatives
Inventor: BODOR NICHOLAS S
IPC: A61K31/70
Filed: 1992-03-27
Abstract: The invention provides compounds of formula (I) and the pharmaceutically acceptable salts thereof, wherein [D] is the residue of a drug having a reactive functional group, said functional group being attached, directly or through a bridging group, via an oxygen-phosphorus bond to the phosphorus atom of the (a) moiety; R1 is C1-C8 alkyl, C6-C10 aryl or C7-C12 aralkyl, with the proviso that when [D] is the residue of a drug having a reactive hydroxyl functional group, said functional group being attached directly to the phosphorus atom of the (a) moiety via an oxygen-phosphorus bond, then R1, taken together with the adjacent oxygen atom, can also be the residue of a drug having a reactive hydroxyl functional group, said functional group being attached directly to the phosphorus atom of the (b) moiety via an oxygen-phosphorus bond, -OR1 being the same as or different from [D]; R2 is hydrogen, C1-C8 alkyl, C6-C10 aryl, C4-C9 heteroaryl, C3-C7 cycloalkyl, C3-C7 cycloheteroalkyl or C7-C12 aralkyl; and R3 is selected from the group consisting of C1-C8 alkyl; C2-C8 alkenyl having one or two double bonds;  (C3-C7 cycloalkyl)-CrH2r- wherein r is zero, one, two or three, the cycloalkyl portion being unsubstituted or bearing 1 or 2 C1-C4 alkyl substituents on the ring portion; (C6-C10 aryloxy)C1-C8 alkyl; 2-, 3- or 4-pyridyl; and phenyl-CrH2r-wherein r is zero, one, two or three and phenyl is unsubstituted, or is substituted by 1 to 3 alkyl each having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, halo, trifluoromethyl, dialkylamino having 2 to 8 carbon atoms or alkanoylamino having 2 to 6 carbon atoms. The compounds are adapted for targeted drug delivery, especially to the brain.
Patent CA-2111974-A1 (CA)
Title: Carbapenem derivatives
Inventor: NISHI TOSHIYUKI
IPC: C07D/
Filed: 1992-06-19
Abstract: Prior art carbapenem derivatives including thienamycin have disadvantages in that they are physico-chemically unstable and apt to be decomposed by DHP and the like enzyme in the kidney, thereby causing side-effects such as renal toxicity. In addition, 1-b-methylcarbapenem compounds which exhibit stable and strong antibacterial activity are still unsatisfactory in terms of their stability and antibacterial activity against DHP. The present invention provides an antibiotic which shows strong antibacterial activity against various bacterial strains including Pseudomonas aeruginosa and is excellent in terms of safety and stable against hydrolases such as DHP.      A compound represented by formula (I):    (I) wherein R1 represents a lower alkyl group or a hydroxy lower alkyl group which may have a protecting group; R1 represents a hydrogen atom or a lower alkyl group; R3 represents a carboxyl group which may be esterified; R4 represents an amino group-protecting group, a hydrogen atom or a lower alkyl group; R5 and R6, which may be the same or different, each represents a hydrogen atom, a hydroxyl group, a lower alkyl group, a hydroxy lower alkyl group or a halogen atom, and R5 and R6 may together form an alkylene group having 2 to 6 carbon atoms; R7 represents a hydrogen atom, a lower alkyl group, a carboxyl group, a carbamoyl group, a carboxyl group which may have a protecting group, or a partial structure represented by -CON71R72 where R71 and R72, which may be the same or different, each represents a hydrogen atom or a lower alkyl group; R8 represents a hydrogen atom, a lower alkyl group or a hydroxy lower alkyl group, and R7 and R8 may together form an alkylene group having 2 to 6 carbon atoms;      R9 and R10, which may be the same or different, each represents an amino group-protecting group, a hydrogen atom or a lower alkyl group; Z represents a single bond, an oxygen atom, a sulfur atom, or a partial structure represented by -CR11R12-, -NR13CO-, -CONR14- or -NR15- where R11 and R12, which may be the same or different, each represents a hydrogen atom, a hydroxyl group, a lower alkyl group, a hydroxy lower alkyl group or a halogen atom, and R11 and R12 may together form an alkylene group having 2 to 6 carbon atoms, R13 and R14, which may be the same or different, each represents a hydrogen atom or a lower alkyl group and R15 represents an amino group-protecting group, a hydrogen atom or a lower alkyl group; and each of m and n represents an integer of 0 to 6, and a salt thereof.
Patent CA-2113481-A1 (CA)
Inventor: TULLEY MICHAEL K
IPC: B67D1/12
Filed: 1994-01-14
Abstract: An improved apparatus and method is provided for accurately dispensing a preselected volume of liquid. A flowmeter is provided to generate signals proportional to the flow of liquid through a faucet. A programmed microcomputer receives the flowmeter signals and controls the faucet. The residual volume of liquid (spill), which was dispensed after the faucet was last commanded to close, is stored and averaged with additional previously stored spill amounts by the microcomputer. The average spill volume is used to anticipate the spill for the forthcoming pour. When the cumulative volume of liquid dispensed is equal to the preselected volume less the anticipated spill volume, the microcomputer signals the faucet to close, resulting in an accurate pour. In a another aspect, an improved beer dispensing head is provided. A spring-loaded conventional tap handle activates a sensor means in the head. A remote microcomputer receives a signal from the sensor and produces a controlling signal to activate a remote electro-pneumatic valve. The valve actuates a double-acting cylinder located in the head which in turn actuates the faucet, dispensing beer.
Patent CA-2113490-A1 (CA)
Title: 9h-imidazo[1,2-a]benzimidazole-3-acetamide derivatives, their preparation and their therapeutic application
Inventor: GEORGE PASCAL
IPC: A61P25/08
Filed: 1994-01-14
Abstract: ABSTRACT   9H-IMIDAZO[1,2-a]BENZIMIDAZOLE-3-ACETAMIDE DERIVATIVES, THEIR PREPARATION AND THEIR THERAPEUTIC APPLICATION        Compound corresponding to the formula:                                  (I)   in which X represents one or more of hydrogen, halogen, alkyl, trifluoromethyl, alkoxy, alkylthio, methylsulphonyl, cyano, ethoxycarbonyl, aminocarbonyl and carboxy, Y represents one or more of hydrogen, halogens, alkyl, trifluoromethyl, methoxy and trifluoromethoxy, R1 represents hydrogen, alkyl, phenylmethyl, 2-phenylethyl, acetyl or alkoxycarbonyl, R2 and R3 each represent hydrogen, alkyl which is optionally substituted, prop-2-enyl, prop-2-ynyl, phenyl, 1-(phenylmethyl)piperidin-4-yl, or 1-[(cyclohexen-1-yl)methyl]piperidin-4-yl, or alternatively R2 and R3 form, with the nitrogen atom carrying them, an optionally substituted heterocycle.  These compounds are useful as hypnotio, anxiolytic and anticonvulsant agents.
Patent CA-2114445-A1 (CA)
Title: Nitrosamine inhibition
Inventor: GHADIMI MOHARAM
IPC: C07C291/04
Filed: 1994-01-28
Abstract: ABSTRACT          A synergistic nitrosamine and/or nitrite inhibitor comprising :-(i)  a compound of formula:-RyN(O)x(CH2PO3M2)(3-y) where y is 1 or 2, x is 1 or O,R is an alkyl group having up to 6 carbon atoms or a hydroxyalkyl, carboxyalkyl or polyoxethylene group having 2 to 6 carbon atoms and M is hydrogen, or a cation such that the compound is water soluble; and (ii) a synergistic proportion of a compound of general formula :-(M2O3PCH2)2N(O)x[(CH2)mN(O)xCH2PO3M2]nCH2PO3M2 wherein n is independently from 0 to 8, m is 2 or 3, and x and M are as hereinbefore defined.
Patent CA-2115165-A1 (CA)
Title: Portable food and beverage storage unit
Inventor: CHRUNIAK STEPHEN A
IPC: B60N3/10
Filed: 1992-08-05
Abstract: The present invention relates to a portable storage unit (10) for food or drink items which is adapted for mounting over an air ventilator (36) of an air-conditioner or heating unit, thus allowing items stored within a container (12) to be cooled or heated, as desired. Additionally, in a preferred embodiment, the unit (10) of the present invention is formed of an insulating material thus allowing the user to remove the unit (36) from the vehicle and transport the stored items without the need for a conventional cooler.
Patent CA-2115921-A1 (CA)
Inventor: VONHOENE ROBERT M
IPC: C21D1/34
Filed: 1992-08-07
Abstract: A process for making a large number of magneto-mechanically resonant markers having distinct resonant characteristics is disclosed. The process comprises modifying at least one surface of a glassy metal alloy strip so as to cause the effective length of the alloy strip to be different from the physical length thereof. Resonant markers comprising alloy strips treated by the process of the present invention display unique and distinguishable resonant characteristics which gives the marker a unique identity. The resonant markers can be used for article surveillance, inventory control and personnel identification.
Patent CA-2115952-A1 (CA)
Title: Deceleration warning system
Inventor: GERHAHER MAX
IPC: B60Q1/44
Filed: 1994-02-18
Abstract: A deceleration warning unit and a method for the control thereof serve for reducing the danger of rear end collisions in road traffic or in other movementsof bodies. In order to avoid the disadvantages of conventional brake lights andwarning blinking systems the intensity of the warning by the deceleration warning system of a vehicle ahead is made dependent on the level of the danger factor G, which applied for such vehicle and may be relevant for the following vehicle.
Patent CA-2116799-A1 (CA)
Inventor: NAPOLITANO NEIL J
IPC: A61K47/32
Filed: 1994-03-02
Abstract: A solid dosage form for relieving xerostomia symptoms comprising a lubricating polymer comprising polyethylene oxide and a sialogogue in a pharmaceutically acceptable, substantially non-cariogenic, carrier.