baber/WOPTO huggingface dataset:
Patent CA-2051491-A1 (CA)
Title: Self locking panel fastener with device for visually indicating whether fastener is locked
Inventor: COSENZA FRANK J
IPC: F16B39/00
Filed: 1991-09-16
Abstract: ABSTRACT OF THE DISCLOSURE       A self locking panel fastener which has positive locking a stud holdout mechanism and an indicator pin to visually indicate to an operator whether the fastener is engaged properly with a mating receptacle.     The fastener comprises a receptacle connected to one of the two panels  being  secured  together,  the  receptacle having  an internally threaded nut portion, an externally threaded stud having a head portion extendible through the apertures of the panels, the stud being rotatable relative to receptacle nut portion to turn the threaded portion into said nut portion to secure the stud to said nut portion, the stud having a shaped end portion and a bore formed therein; a first locking member within said receptacle having a shaped aperture and sized to receive the shaped end portion of the stud to drivingly connect the first locking member and the stud; a second locking member mounted within the receptacle for generally axial movement relative to the nut portion; a spring member for forcing the second locking member into engagement with the first locking member to form a locking connection between the stud and the second locking member to allow the second locking member to positively lock the stud against said counterrotation; and a member for driving the second locking member generally axially relative to the first locking member against the force of the spring to break the locking connection and to allow counterrotation of the stud relative to the nut portion to allow unscrewing of the stud from the nut portion, the driving member having a first position within the bore when the stud is engaged with the receptacle and a second position when the stud is disengaged from the receptacle.
Patent CA-2052542-A1 (CA)
Title: Rubber additive
Inventor: COLLYER JOHN C
IPC: C08L23/28
Filed: 1991-09-30
Abstract: An additive for improving the ageing characteristics of rubber compositions is described. The additive comprises a liquid low-molecular weight ethylene-propylene-diene (EPDM) terpolymer and a suitable curing agent such as amine antioxidant/antiozonants. A  microcrystalline and a paraffin wax and a metal oxide may also be included.
Patent CA-2052891-A1 (CA)
Title: Child resistant unit dose package
Inventor: BUNIN LEONID
IPC: B65D50/06
Filed: 1991-10-07
Abstract: A child resistant unit dose package for medications comprises a container member having concealed locking means, a plurality of cavities along its longitudinal axis for holding medication, each cavity closed with a peel-off seal, and a cover for the container member that requires two operations to open.
Patent CA-2053594-A1 (CA)
Title: Communication system having isdn (integrated services digital network) signaling capability
Inventor: BAKER ALBERT D
IPC: H04Q11/04
Filed: 1991-10-16
Abstract: A communications system operates compatibly with a public or private switching network using a Q.931 protocol for basic rate ISDN (Integrated Services Digital Network) communications. Communications between a control unit and station terminals of the system use a local protocol which is a modification of the Q.931 protocol. This local protocol includes one segment including the mandatory elements of the Q.931 protocol and a second segment derived by converting the optional elements of the Q.931 protocol into a local codeset which controls the user interface circuits at each station terminal. The local protocol enables call control between the control unit and each station terminal to be managed on a bearer channel basis while call control between the system and the network is managed on a call appearance basis using the standard Q.931 protocol. The local protocol provides for communicating line selection and feature activation commands from the terminal to the control unit, using simple button commands.
Patent CA-2053853-A1 (CA)
Title: Brushing wire for coronary revascularization
Inventor: HACHIDA MITSUHIRO
IPC: A61B17/22
Filed: 1991-02-28
Abstract: ABSTRACT         The invention relates to a wire for coronary revascularization, characterized in that a plurality of projections or grooves are formed within a range of a distal end of a flexible or elastic wire body, or to a wire for coronary revascularization, characterized in that a spiral element is provided in spaced relation to a distal end of a yieldable or elastic wire body, and that a portion of the wire body within a range of the spiral element is resected.
Patent CA-2055642-A1 (CA)
Title: Curable epoxy resin composition
Inventor: BRUNNER RUDOLF
IPC: C08G59/00
Filed: 1991-11-15
Abstract: Curable epoxy resin composition Abstract of the Disclosure Curable epoxy resin compositions comprising (a) 30 to 70 parts by weight of a tetraglycidyl compound of formula   wherein R1, R2, R3 and R4 are each independently of one another a hydrogen atom, a halogen atom or C1-C4alkyl, with the proviso that at least one of the substituents R1 to R4 is C1-C4alkyl, (b) 70 to 30 parts by weight of an aromatic glycidyl ether containing on average 2.0 to 3.0 glycidyl ether groups in the molecule, such that the amount of (a) and (b) together is 100 parts by weight, (c) a diaminodiphenylsulfone in an amount such as to supply 0.6 to 1.3 equivalents of amino hydrogen atoms per 1 epoxide equivalent of the epoxy resin component consisting of (a) and (b), and (d) I to 50 parts by weight, based on 100 parts by weight of (a) and (b), of a thermoplastic resin dissolved therein having a glass transition temperature of at least 150°C, are suitable for the preparation of cured articles, especially for making prepregs for the preparation of fibre-reinforced composites
Patent CA-2056599-A1 (CA)
Title: Diesel engine exhaust gas-purifying catalyst
Inventor: HORIUCHI MAKOTO
IPC: B01J23/89
Filed: 1991-11-28
Abstract: Abstract of the Disclosure A diesel engine exhaust gas-purifying catalyst which comprises a refractory three dimensional structure loaded with a catalytic component comprising zirconia having a specific surface area of 50 to 200 m2/g and a primary particle average diameter of 50 to 200 .ANG., loaded with at least one noble metal selected from palladium and rhodium, in a dispersed state.
Patent CA-2057052-A1 (CA)
Title: Enterically transmitted non-a/non-b hepatitis viral agent and characteristic epitopes thereof
Inventor: REYES GREGORY R
IPC: C12Q1/70
Filed: 1991-04-05
Abstract: Viral proteins derived from an enterically transmitted non-A/non-B viral hepatitis agent (HEV) are disclosed. In one em-bodiment, the protein is immunologically reactive with antibodies present in individuals infected with the viral hepatitis agent.  This protein is useful in a diagnostic method for detecting infection by the enterically transmitted agent. Specific epitopes have been identified that are reactive with sera of individual infected with different strains of HEV. Also disclosed are DNA probes derived from a cloned sequence of the viral agent. These probes are useful for identifying and sequencing the entire viral agent and for assaying the presence of the viral agent in an infected sample, by using probe-specific amplification of virus-derived DNA fragments.
Patent CA-2057638-A1 (CA)
Title: Process for purification of carboxylic acids
Inventor: COOK JOHN
IPC: C07C51/44
Filed: 1991-12-13
Abstract: Case 7641(2) ABSTRACT OF THE DISCLOSURE            PROCESS FOR PURIFICATION OF CARBOXYLIC ACIDS      Carboxylic acids produced by carbonylation and having iodide and oxidisable impurities are purified by contacting with hydrogen peroxide and recovering the purified acid by distillation or evaporation.  Preferably a strong acid such as sulphuric acid is used as a catalyst.  Product contamination by sulphur from sulphuric acid and by excess peroxide may be reduced by the use of metal salts in the recovery step.
Patent CA-2059882-A1 (CA)
Title: Sulfonylureas
Inventor: MEYER WILLY
IPC: C07D521/00
Filed: 1992-01-23
Abstract: N-Phenylsulfonyl-N'-pyrimidinyl-, -N'-triazinyl- and -N'-triazolylureas and -thioureas of formula I   (see formula I) in which X is oxygen, sulfur, SO or SO2; W is oxygen or sulfur; R1 is hydrogen or methyl; R2 is hydrogen, fluorine, chlorine, bromine, iodine, (X)n R3, NO2, NR4R5, -C.ident.CR6, (see formula II) C.ident.CR6, or cyano; n is the number 0 or 1; R3 is C1-C4alkyl or C1-C4alkyl which is substituted by 1-4 halogen atoms, C1-C3alkoxy or C1-C3alkylthio; or C2-C4alkenyl or C2-C4alkenyl which is substituted by 1-4 halogen atoms; R4 is hydrogen, CH3O, CH3CH2O or C1-C3alkyl; R5 is hydrogen or C1-C3alkyl; R6 is hydrogen, methyl or ethyl; R7 is hydrogen or methyl; Z is (see formula III) or (see formula IV) ; E is methine or nitrogen; R8 is C1-C4alkyl, C1-C4alkoxy, C1-C4haloalkoxy, C1-C4haloalkyl, C1-C4haloalkylthio, C1-C4alkylthio, halogen, C2-C5alkoxyalkyl, C2-C5alkoxyalkoxy, amino, C1-C3alkylamino or di(C1-C3alkyl)amino; R9 is C1-C4alkyl, C1-C4alkoxy, C1-C4haloalkoxy, C1-C4haloalkylthio, C1-C4alkylthio, C2-C5alkoxyalkyl, C2-C5alkoxyalkoxy, C2-C5alkylthioalkyl or cyclopropyl; R10 is hydrogen, fluorine, chlorine, methyl, trifluoromethyl, CH3O, CH3CH2O, CH3S, CH3SO, CH3SO2 or cyano; R11 is methyl, ethyl, CH3O, CH3CH2O, fluorine or chlorine;  R12 is methyl, ethyl, CH3O, CH3CH2O, fluorine or chlorine; R13 is C1-C3alkyl; and R14 is C1-C3alkyl, C1-C3alkoxy, chlorine or OCHF2; and the salts of these compounds;  with the provisos that E is methine if R8 is halogen; and E is methine if R8 or R9 is OCHF2 or SCHF2, and the salts of these compounds with amines, alkali metal or alkaline earth metal bases or quaternary ammonium bases have good pre- and postemergence selective herbicidal and growth-regulating properties.
Patent CA-2059992-A1 (CA)
Title: Heater-humidifier-dehumidifier unit
Inventor: LIM GUI Y
IPC: F24F1/04
Filed: 1992-01-24
Abstract: A combination heater - humidifier - dehumidifier unit comprises a housing having internal space with a vertical partition dividing the internal space of said housing. A couple of heaters are placed respectively at both sides of the vertical partition. A couple of  fans are  placed  respectively at  both sides  of  the vertical partition. One side of the vertical partition is provided with a humidifying subsystem having a vaporizing water storage vessel. The remaining side of the vertical partition is provided with a dehumidifying  subsystem consisting of  a compressor,  a capillary  tube,  a  condenser  and  an  evaporator.  Further,  a horizontal partition is formed in the housing to further divide the internal space divided by the vertical partition into four rooms. Under the horizontal partition, one room is provided with the vaporizing water storage vessel and the compressor, and other room is  provided  with  a  condensating  water  vessel  for  collecting condensate water from the evaporator.     Since the unit has a plurality of the subsystem in one body, the minimization of the occupying volume is achieve, and in accordance with the air surrounding the unit the proper system  or subsystem can be operated, to maintain proper conditioned air surrounding the unit condition.
Patent CA-2060006-A1 (CA)
Title: Process for electrode control of a dc arc furnace, and an electrode control device
Inventor: STREBEL EDUARD
IPC: H05B7/148
Filed: 1992-01-24
Abstract: ABSTRACT OF THE DISCLOSURE     DC arc furnaces (8) have a current controller (14) for stabilizing the current of an arc (10), and an electrode controller (18) for influencing the position of an electrode (7) of the arc furnace (8) and thus the length of an arc (10). The control of the position of the electrode (7) is performed by means of a hydraulic electrode adjusting device (21), which is controlled as a  function  of  a  difference  between  a  prescribable electrode controller reference variable signal (.alpha.des) and a rectifier manipulated variable signal (.alpha.act) at the output of the current controller (14). As a result, the arc length is regulated such that a rectifier (5) operates on average with a drive level of, for example, 25° electrical, irrespective of the secondary voltage of a furnace transformer (2) and of an adjusted desired current  value  signal  (ides).  Limiting  values  are monitored and undesired frequencies are filtered out by means of a bandpass filter (16) between the output of the current controller (14) and a comparator or summer (17)  for  forming  the  difference  signal  between the electrode controller reference variable signal  (.alpha.des) and the rectifier manipulative variable signal (.alpha.act).
Patent CA-2060485-A1 (CA)
Inventor: CADOSSI RUGGERO
IPC: A61B5/276
Filed: 1992-01-31
Abstract: A device comprising a portable generator for generating a predetermined signal and having an output connected to a first transducer for transmitting the above signal to the body of a first operator (e. g. physician, nurse, etc.); and processing means for analyzing a signal picked up by a second transducer on a second operator (e.g. a patient, etc.) and detecting the significant presence of the above predetermined signal, as a consequence, for example, of direct or indirect contact between the first operator and the second operator.
Patent CA-2061170-A1 (CA)
Title: Field installable choke tube
Inventor: SCHUH DAVID N
IPC: F01N1/00
Filed: 1992-02-13
Abstract: A field installable choke tube apparatus and a method for installing the choke tube into a pulsation dampener of a compressor. The choke tube is insertable into the pulsation dampener through the opening between the nozzle and the pulsation dampener with a plurality of support arms in a retracted position. The support arms are extended after insertion of the choke tube to maintain the choke tube in a secure and predetermined position within the dampener.
Patent CA-2061364-A1 (CA)
Title: Shape casting of metal matrix composites
Inventor: ENRIGHT PHIL G
IPC: F16D65/12
Filed: 1992-02-17
Abstract: Abstract A process is described for the shape casting of metal matrix composites, e.g. aluminum matrix composites.  A charge of molten metal matrix composite material is poured down through a sprue into a mould cavity forming a pattern of the product to be cast.  Then the composite is allowed to solidify within the mould, after which the cast shaped product is removed from the mould.  The novel feature comprises pouring a charge of molten metal matrix composite into the sprue while preventing any outflow of composite from the bottom of the sprue, holding the charge of molten metal matrix composite in the sprue for a time sufficient to allow engulfed gas bubbles to disengage from the molten composite flowing through the sprue and thereafter allowing the charge of molten composite to flow into and fill the mould cavity.  The castings obtained are free of bubbles or voids and may, for instance, be in the form of automotive brake rotors.
Patent CA-2065194-A1 (CA)
Title: Seal arrangement for molded insert
Inventor: MEYER PETER J
IPC: F16J15/00
Filed: 1992-04-06
Abstract: ABSTRACT A seal is provided at an interface between a part and a formed body which is formed to incorporate at least a portion of the part such that a portion of the part adjoins a boundary surface of the formed body. The seal is provided by defining a channel where the interface between the part and the formed body adjoins the boundary surface and disposing a sealing member within the defined channel.
Patent CA-2066251-A1 (CA)
Title: Twist coupling for vacuum pipes
Inventor: MENZEL PAUL
IPC: F16L39/04
Filed: 1990-09-04
Abstract: A device for coupling together two vacuum lines, such that when coupled the lines can be rotated relative to one another. Each of the vacuum lines includes two mutually concentric pipes (1, 2) which define a vacuum space (3) therebetween. The coupling device includes a first coupling part, a male part, on the one vacuum line, and a second coupling part, a female part, on the other vacuum line. Located between the male part and the female part is at least one sealing ring (11) which is arranged so as not to come into direct contact with a cold or a hot medium flowing through the inner pipe (1). The invention also relates to male and female parts of the coupling device for coupling together vacuum lines which, subsequent to being coupled, can be rotated relative to one another.
Patent CA-2067336-A1 (CA)
Title: Polymerizable (functionally-substituted phenylene) semi-rigid crowns
Inventor: GIBSON HARRY W
IPC: C08G69/26
Filed: 1990-10-05
Abstract: ABSTRACT OF THE DISCLOSURE      Bis(carboalkoxy-substituted m-phenylene)-32-crown-10 compounds, useful as polymerizable monomers, can be formed in one step by reacting a functionalized dihydroxy aromatic compound with a dihalopolether.  In the same reaction, carboalkoxy-substituted m-phenylene-16-crown-5 is formed. Other mono- and di-functionalized bis(phenylene) crown ethers can be made by one step as well as multistep synthesis from similar starting materials
Patent CA-2070002-A1 (CA)
Inventor: KOICHI HIRAI
IPC: C07D477/00
Filed: 1992-05-29
Abstract: ABSTRACT OF THE DISCLOSURE     Compounds of formula (I):                                             (I) [wherein: R1 is hydrogen or a hydroxy-protecting group; R2 is alkyl, alkoxy, halogen, optionally substituted phenyl or optionally substituted phenoxy; R3 is optionally substituted pyridyl, optionally substituted quinolyl or phenyl group which has a substituent of formula -CYNR5R6, where Y is oxygen or sulfur, and R5 and R6 are each alkyl, aryl or aralkyl, or R5 and R6 and the nitrogen to which they are attached together form a heterocyclic group; R4 is hydrogen or an amino-protecting group; and Z is sulfur or oxygen]; are valuable intermediates in the preparation of carbapenem compounds and retain a desirable configuration during conversion to such carbapenem compounds.
Patent CA-2070450-A1 (CA)
Title: Photographic process and composition
Inventor: TAYLOR LLOYD D
IPC: G03C8/52
Filed: 1992-06-04
Abstract: Abstract of the Disclosure Hydroquinones form stable hydrogen-bonded complexes with N,N,N',N'-tetrasubstituted diamides of aromatic dicarboxylic acids in which two carboxyl groups are arranged para to one another on the same phenyl ring. These complexes are useful in rendering the hydroquinones more water-dispersible to assist their incorporation into photographic products. Also, the diamides may be incorporated into photographic products to reduce or eliminate various problems associated with hydroquinones, including migration of hydroquinones within the product during storage and the discoloration of images on storage due to oxidation of hydroquinone present in an image-receiving element of the photographic product.
Patent CA-2072037-A1 (CA)
Title: Commemorative plaque and method of making same
Inventor: MCFADYEN WILLIAM
IPC: G09F7/16
Filed: 1992-06-23
Abstract: ABSTRACT A multi-layer commemorative plaque for displaying an artwork composition evocative of persons, places or items related to an event or series of events, and a representation, typically a reproduction, of a unique ticket associated with said event or series of events, is disclosed. The plaque comprises a rigid support backing, a first sheet mounted on the rigid support backing and a second sheet mounted on a portion of at least one of the exposed side of said first sheet and said support backing. The reproduction of the unique ticket is preferably formed from a computer stored digitally encoded model of the unique ticket using a colour printing means such as a colour laser printer. The representation of the ticket additionally includes at least one signature of at least one participant associated with the event or series of events. A transparent thin film protective layer is mounted over the first and second sheets in an adhered manner so as to conform thereto, and to protect the plaque.
Patent CA-2072091-A1 (CA)
Inventor: WILK PETER J
IPC: A61B17/12
Filed: 1990-11-23
Abstract: A suture device (210) comprises a loop member (224) formed on one side with an aperture (216) and an access channel (220) extending from the aperture to an opening (215) defined by the loop. A  thread (226) connected to loop is provided along a portion of its length with a series of tapered projections (228). Protuberances (211), (213) are provided on the loop member along the access channel between the opening and the aperture for preventing a return of the thread through the channel upon a passing of the thread through the loop and subsequently through the channel into the aperture.
Patent CA-2072450-A1 (CA)
Inventor: KRISKO ANNETTE J
IPC: G02F1/1524
Filed: 1992-06-26
Abstract: ABSTRACT OF THE DISCLOSURE      A plasma enhanced chemical vapor deposition method is provided for depositing an oxide film onto a substrate surface.  Deposition is achieved even onto a surface of a glass or other relatively non-receptive substrate.  A sub-film is deposited under plasma enhanced chemical vapor  deposition  conditions  more  strongly  favoring deposition, followed by deposition of the desired oxide film  under  second  plasma  enhanced  chemical  vapor deposition conditions less strongly favoring deposition. High quality oxide films can be achieved by deposition at second  plasma  enhanced  chemical vapor.  deposition conditions  only  marginally  favoring  deposition  over etching.
Patent CA-2072467-A1 (CA)
Title: Vapor probe for soil gas vapor sampler
Inventor: VOLLWEILER ARTHUR R
IPC: B09C1/00
Filed: 1992-06-26
Abstract: ABSTRACT A device for sampling gas vapor underground has a probe tip designed to be driven into the ground. The probe tip has a removable sheath that covers a tube having an enlarged conical tip with the tube having multiplicity of apertures in the tube to gather soil gas vapors through the apertures and conduct them through a flexible plastic tube attached to the probe up to the surface of the ground to be monitored. The probe has a flexible disc attached thereto above the apertures to protect the apertures from being filled with earth from above. The apertures also have a screen around them to prevent earth from entering the apertures to plug them. After the probe is in place in the earth, the removable sheath is pulled above ground, leaving the probe to gather gas samples for collection and evaluation at a collection point above ground.
Patent CA-2074956-A1 (CA)
Title: Enhanced arterial oxygen saturation determination and arterial blood pressure monitoring
Inventor: CLARK JUSTIN S
IPC: A61B5/0225
Filed: 1990-01-30
Abstract: A noninvasive system and method for monitoring arterial oxygen saturation levels and blood pressure. The apparatus includes a read LED (54) and an infrared LED (56) which are  positioned to direct their respective light beams into, or reflected by a patient's body part. A phototransducer device (64) is positioned to receive the light beams (608, 62) which are transmitted through the body part. A pressure cuff (34) surrounds the body part (36) and the LEDs (54, 56). During calibration periods, pressure is applied to the body part (36) and the systolic and mean blood pressures and the arterial oxygen saturation level are determined. The pressure is then released from the body part (36) and another arterial oxygen saturation level is determined and the difference between the two oxygen saturation levels is used as a calibration factor during later monitoring periods to remove the effect of non-arterial oxygen saturation levels on the values obtained during the subsequent monitoring period.
Patent CA-2076699-A1 (CA)
Title: Compositions for topical treatment of psoriasis and atopic dermatitis
Inventor: EITAN ANAT
IPC: C07D473/06
Filed: 1992-08-24
Abstract: ABSTRACT Use of a compound selected from the group consisting of pentoxifylline, propentofylline and torbafylline for topical treatment of psoriasis or atopic dermatitis and pharmaceutical compositions comprising them.