baber/WOPTO huggingface dataset:
Patent CA-1140115-A (CA)
Inventor: BHARUCHA KEKHUSROO R
IPC: C07D499/00
Filed: 1980-07-16
Granted: 1983-01-25
Abstract: ABSTRACT OF THE DISCLOSURE        A process for preparing ampicillin trihydrate is disclosed which comprises acylating silylated 6-amino-penicillanic acid with D(-)-.alpha.-phenylglycylchloride hydro-chloride directly in the silylation reaction mixture in the presence of urea as an acid acceptor, hydrolyzing the reaction product and precipitating ampicillin-trihydrate from the resulting aqueous solution.  The amounts of reactants, in particular of solvents and water, are ad-justed to provide good yields of a product of high purity.
Patent CA-1132819-A (CA)
Inventor: ASSMANN HANS
IPC: F42B33/02
Filed: 1980-07-22
Granted: 1982-10-05
Abstract: ABSTRACT OF THE DISCLOSURE    A delay charge is filled into a tubular delay charge carrier closed on one end, and the filling height is measured subsequently. Only when the sufficient filling height of the delay charge has been reached, the bottom part of said tubular delay charge carrier is provided with an aperture so that only then the detonating charge of the hand grenade fuze  can be ignited.
Patent CA-1119749-A (CA)
Inventor: ELFERT KLAUS
IPC: C08F220/48
Filed: 1980-08-11
Granted: 1982-03-09
Abstract: A semi-permeable membrane prepared from a copolymer consisting of copolymerized units of (A) 50 to 99% by weight of acrylonitrile, (B) 1 to 50% by weight of at least one monomer of the formula <IMG> where in Ar is a benzene or naphthalene group; R1 to R4 are identical or different and each is H, or lower alkyl; and X is H, Na, K or NH4; and (C) 0 - 30% by weight of at least one other olefinically unsatur ated monomer which is copolymerisable with acrylonitrile, the sum of the percentage contents of (A) to (C) being in all cases 100. The semi-permiable membrane is useful in reverse osmosis and ultra-filtra-tion techniques for separating substances in aqueous solution under pressure.
Patent CA-1150808-A (CA)
Inventor: HIRAO MOTOHISA
IPC: H01L21/208
Filed: 1980-09-29
Granted: 1983-07-26
Abstract: SEMICONDUCTOR LASER DEVICE                 ABSTRACT OF THE DISCLOSURE         A semiconductor laser device includes an active region consisting of a semiconductor material and a semi-conductor region consisting of a material having a different composition from that of the active region and confining the active region.  The invention provides at least one p-n junction formed inside the confining region in parallel with the active region.  The impurity concentration of the region having the p-n junction is such that current can flow through regions other than the active region via the p-n junction at a field strength below that causing degradation of the device.  As a result, the device does not undergo catastrophic degradation even when a current higher than the rated value is applied thereto.
Patent CA-1146595-A (CA)
Title: Process for producing 2,3-dihalogenopropionitrile
Inventor: NAGAI SHOSUKE
IPC: C07C255/10
Filed: 1980-12-17
Granted: 1983-05-17
Abstract: Abstract of the Disclosure A  process for producing a 2,3-dihalogenopropio-nitrile is provided which comprises directly halogenating acrylonitrile with a halogenating agent in the presence of a carbonate, hydrogen carbonate or hydrogen phosphate of an alkali or alkaline earth metal in the absence of positive irradiation of light.
Patent CA-1132752-A (CA)
Inventor: ZEBELL DIANE
IPC: A41D1/22
Filed: 1981-02-20
Granted: 1982-10-05
Abstract: Abstract of the Disclosure:        An article of wearing apparel has a panel of readily-expansible material in the front upper half thereof to enable that article of wearing apparel to be worn by persons of different sizes and configura-tions; and it has a panel of less-expansible material overlying and concealing the panel of readily-expansible material.  The panel of less-expansible material permits free expansion and contraction of the panel of readily-expansible material while effec-tively concealing the latter panel.
Patent CA-1125808-A (CA)
Title: Shopping cart with auxiliary load carrier
Inventor: SWANN JULIAN B
IPC: B62B1/12
Filed: 1981-03-20
Granted: 1982-06-15
Abstract: Title:  Shopping Cart with Auxiliary Load Carrier Abstract of the Disclosure The invention is a modification of a known type of shopping cart having a basket which allows the cart to carry loads which will not fit within the basket. The cart is of the type having a collapsible basket the front and back of which have pivoted connections to the bottom and to side ribs which provide a parallelogram type of folding, wheels being provided at the lower end of the basket back, and a frame including a handle bridging the basket top and legs pivoted to upper rear side portions of the basket, the legs being slidably located by the front bottom of the basket.  The invention provides an auxiliary load carrier which can be pivoted into an operative condition, projecting at about a right angle to the legs, when the basket is almost collapsed; the cart can then be used as a standard two-wheel cart for boxes, suitcases and other large loads.
Patent CA-1155535-A (CA)
Title: Ensemble de semiconducteurs de puissance muni de  transformateurs et de circuits d'allumage et de  protection
Inventor: MASSELIN MICHEL
IPC: H05K7/20
Filed: 1981-04-16
Granted: 1983-10-18
Abstract: La présente invention a pour objet un ensemble de semiconducteurs de puissance muni de transformateurs et de circuits d'allumage et de protection dans lequel les semiconducteurs, par exemple des thyristors, sont disposés en colonnes. Ces colonnes sont immergées dans un fluide de refroidissement et enserrées par des plateaux d'extrémité. Le montage est disposé de telle sorte qu'on réduit les longueurs des connexions entre les thyristors, les transformateurs et les circuits de protection. Pour cela les transformateurs et les circuits de protection sont disposés sur des plaquettes dont le plan est parallèle aux axes des colonnes des thyristors. Application à l'alimentation des moteurs en traction ferroviaire.
Patent CA-1153793-A (CA)
Inventor: CLINGENPEEL WILLIAM R
IPC: H01M50/176
Filed: 1981-05-19
Granted: 1983-09-13
Abstract: SIDE TERMINAL BATTERY AND METHOD OF MAKING SAME     ABSTRACT OF THE DISCLOSURE    A side terminal battery (10) and method of making same is shown and described.  In particular, the terminal (34) includes an electrically conductive plug (24) disposed within an externally extending boss (16).  The plug (24) does not extend into the battery (10).  Rather, a riser (38) is welded (40) to the plug (24) through an aperture (14) disposed at the base of the boss (16).  The terminal (34) is mechani-cally crimped (42 and 44) to further ensure the leak-resistant soundness of the joint between the plug (14) and riser (38).
Patent CA-1152465-A (CA)
Inventor: FRATES PAUL S
IPC: F16K1/00
Filed: 1981-05-20
Granted: 1983-08-23
Abstract: LIQUID DISPENSING DEVICE            Abstract of the Disclosure A liquid dispensing device is disclosed in which there is a movable needle operable to open and close a valve seat located within a nozzle of the dispensing device.  The needle valve is guided by longitudinal bushing surfaces contained within the nozzle bore.  The nozzle has very nearly zero volumetric capacity internally of the nozzle within which liquid may collect between the closed valve seat and the outlet orifice of the nozzle.  This "zero capacity" nozzle contains two needle valve engageable seating surfaces, the first of which is operable to close off flow through the nozzle from the dispensing device, and the second of which subsequently closes the nozzle orifice.
Patent CA-1155836-A (CA)
Inventor: BAEBLER FRIDOLIN
IPC: C09B67/54
Filed: 1981-05-28
Granted: 1983-10-25
Abstract: Abstract In a process for conditioning an azo pigment by alkaline reprecipitation, the crude pigment, in a polar organic solvent, is converted to a pigment salt by adding a base, the azo pigment is reprecipitated by adding an acid and the acidic pigment suspension is then heated, with stirring, and the crystalline pigment obtained is isolated.     The process results in crystals of improved form, improved texture and more advantageous rheological properties      The conditioned azo pigments are parti-cularly suitable for colouring high-molecular organic material.
Patent CA-1161429-A (CA)
Inventor: KOENIG HANS-BODO
IPC: A61P31/04
Filed: 1981-06-04
Granted: 1984-01-31
Abstract: ABSTRACT OF THE DISCLOSURE A pure syn-form cephalosporin of the formula   in which n is 2, 3 or 4, R1 represents a hydrogen atom, a pharmaceutically acceptable metal cation, an ammonium cation of a pharmaceutically acceptable nitrogen base, a radical of an ester of, if another part of the molecule contains a positive charge, a negative charge, T denotes -CH3, -CH2-O-CO-CH3,       [in which Z denotes O or S), -O-CO-NH2,   or   and Y denotes -S- or -?-, is produced by reacting aminothiazolylglyoxylic acid of the formula ABSTRACT:                        with the hydrazine compound of the formula   to give a syn-acid of the formula   and reacting the syn-acid with a halogenating agent, and then in the absence of a base with a 7-aminocephalosporanic acid derivative of the formula   The pure syn-form of the cephalosporin is considerably more active as an antibiotic than the antii-form.
Patent CA-1149361-A (CA)
Inventor: LANE GERALD H
IPC: B60N3/10
Filed: 1981-06-18
Granted: 1983-07-05
Abstract: Abstract of the Disclosure A unit to support while eating packaged convenience foods such as hamburgers, french fries and soda pop comprises an elongated standard and a set of holding members having con-nectors insertable into the body of the standard.  The hold-ing members have reentry portions for engaging or impaling the package of convenience foods and a hanger is provided at one end of the unit so that the unit when assembled and loaded with convenience foods may be suspended like a pendu-lum from the rear view mirror assembly of a motor vehicle.
Patent CA-1150414-A (CA)
Inventor: BROKAW ADRIAN P
IPC: H03M1/00
Filed: 1981-06-25
Granted: 1983-07-19
Abstract: DIGITAL-TO-ANALOG CONVERTER WITH IMPROVED COMPENSATION ARRANGEMENT FOR OFFSET VOLTAGE VARIATIONS     Inventor:  Adrian Paul Brokaw ABSTRACT OF THE DISCLOSURE     A digital-to-analog converter comprising a plurality of identical transistor current sources with their emitters connected to respective shunt legs of an R-2R ladder network for establish-ing binary weighting of the transistor currents.  The effects of variations in transistor offset voltage are compensated for by returning the ladder termination resistor to a voltage which is 2(kT/q)ln 2 more positive than the last active stage of the con-verter.
Patent CA-1178068-A (CA)
Inventor: RICHEY JOHN M
IPC: F02C7/232
Filed: 1981-10-23
Granted: 1984-11-20
Abstract: DUAL FUEL PATH STEM FOR  A GAS TURBINE ENGINE                ABSTRACT OF THE DISCLOSURE      A stem couples a fuel injector inlet to a fuel nozzle. The fuel nozzle includes a primary fuel flow portion and a secondary fuel flow portion.  The stem includes an input end for receiving a primary fuel flow and a secondary fuel flow from the fuel injector inlet.  The stem includes three concentric tubes with the first tube coupling the primary fuel flow from the injector to the primary portion of the nozzle.  A second concentric tube couples the secondary fuel flow from the injector to the secondary portion of the nozzle. The primary fuel flow and the secondary fuel flow in the two concentric tubes are nonlinear with respect to the input and output ends of the stem.  The third concentric tube provides structural support and an insulating space for the first two concentric tubes. Methods for constructing the stem are provided.  Other embodiments are disclosed.
Patent CA-1185051-A (CA)
Inventor: HOLTMAN DENNIS C
IPC: A61F13/15
Filed: 1981-11-13
Granted: 1985-04-09
Abstract: Absorbent Structure with Reservoir Abstract of the Disclosure The present invention provides an absorbent structure comprising a moisture-impermeable backing, an absorbent batt and a moisture-permeable cover covering at least the side opposite the moisture-impermeable backing.  The absorbent batt is of loosely-compacted, cellulosic fibers and contains a reservoir capable of receiving at least about 75% of the body fluid discharged in one second.  The reservoir is formed by compression of the fibers in the reservoir zone.
Patent CA-1165144-A (CA)
Inventor: SLUTZKY AZRIEL
IPC: F02P17/06
Filed: 1981-12-24
Granted: 1984-04-10
Abstract: ABSTRACT     An  automobile  timing  light  for  use with an  internal combustion engine.  The timing light includes a skip circuitry for regulating the time between flashes of a flash circuitry for permitting a sufficient charge to develop across a flash powering capacitor between successive flashes.   The timing light thus provides a uniformly bright light flash irrespective of engine r.p.m.
Patent CA-1169496-A (CA)
Inventor: KONDO YOSHITERU
IPC: B23K9/10
Filed: 1981-12-29
Granted: 1984-06-19
Abstract: ABSTRACT      The present invention provides a capacitor charging circuit for a discharge type welding tool. The circuit includes a rectifier for producing rectified pulsating currents, a capacitor to be charged, a thyristor between the rectifier and the capacitor. A pulse generator receives the pulsating currents and in turn produces a pulse at each hill of the pulsating current. The thus produced pulse is applied to the gate of the thyristor which turns the thyristor on. A charge potential detecting circuit directly measures the charge potential across the charged capacitor and transfers a signal change, according to the level of the capacitor potential, to the pulse generator so as to thereby control the timing of the pulse generation at each hill of the pulsating current.
Patent CA-1193063-A (CA)
Inventor: IMGRAM FRIEDRICH
IPC: B29C65/00
Filed: 1982-01-25
Granted: 1985-09-10
Abstract: ABSTRACT OF THE DISCLOSURE      Shaped articles, particularly  tubular shaped articles,are formed by a process comprising molding a crosslinkable synthetic plastic material into a first molded shape, crosslinking the plastic material at a temperature in excess of the crystalline melting point of the material, subjecting the crosslinked first shape to a working operation to form a second configura-tion shape and subjecting specific areas of the second shape to a heat treatment thereby forming a deformation in the specific area.  Extruded tubular materials subjected to a stretching operation tend to seek their original shape upon heat treatment thereby making the degree of deformation possible nearly equal to the degree of stretching.
Patent CA-1171019-A (CA)
Inventor: MILLS GEOFFREY S
IPC: A01J5/10
Filed: 1982-01-25
Granted: 1984-07-17
Abstract: ABSTRACT OF DISCLOSURE     A teat cup milking inflation is disclosed which is constructed from a natural or synthetic rubber material or like elastomeric plastics material and arranged for location in a rigid shell to which a pulsating vacuum/air pressure is applied for flexing of the inflation when located on an animal's teat; the main part of the inflation having a double co-axial barrel form with the upper barrel locatable on the animal's teat and the lower barrel communicating with the upper teat barrel and a lower milk outlet tube part to which suction is applied, both barrel parts being located within the rigid shell and the lower barrel part being also at least partially oollapsible under the pulsating vacuum/air pressure.
Patent CA-1178024-A (CA)
Inventor: WIRSCHING FRANZ
IPC: B01D53/77
Filed: 1982-03-01
Granted: 1984-11-20
Abstract: Abstract Flue gas gypsum having a free water content of 4% by weight and thereabove is dried in direct contact with a partial stream withdrawn from the primary stream of a dry-dedusted flue gas and is separated from this partial stream, which latter is then fed to the intake side or to the delivery side of the booster blower ar-ranged upstream of the flue gas desulfuration device, and the finely particulate flue gas gypsum is conducted from the drying device into the flue gas desulfurizing device.
Patent CA-1187433-A (CA)
Inventor: CARLSSON MATS E
IPC: C08B37/02
Filed: 1982-05-17
Granted: 1985-05-21
Abstract: Abstract of the Disclosure The invention relates to a cell culture microcarrier, which comprises a water-insoluble polymeric carrier being substituted with quarteenary amino groups. According to the invention the quarternary amino groups have the formula:       where Z is a possibly substituted hydrocarbon chain and having at least two carbon atoms; R1, R2 and R3, which may be identical or different, may be lower alkyl groups of 1 - 5 carbon atoms or lower hydroxy alkyl groups of 2 - 5 carbon atoms and 1 - 2 hydroxyl groups.     Moreover at most one of R1 - R3 may be an alkyl group of 1 - 20 carbon atoms. In the hydroxyalkyl groups at most one atom other than carbon and hydrogen may be bound to one and the same carbon atom.
Patent CA-1156614-A (CA)
Inventor: SYBERT RICHARD D
IPC: B60R19/48
Filed: 1982-06-30
Granted: 1983-11-08
Abstract: ABSTRACT OF THE DISCLOSURE             This application discloses a rear bumper assembly for a vehicle having a collapsible hoist mounted in the bumper and provided with an electric winch which is used in conjunction with the hoist to provide a crane when the hoist is erected and to provide a double line winch when the hoist is collapsed.  A rearwardly extensible and laterally movable tow bar also is mounted in the bumper.
Patent CA-1200987-A (CA)
Inventor: KAHL JAMES D
IPC: F16G13/06
Filed: 1982-07-15
Granted: 1986-02-25
Abstract: ABSTRACT OF THE INVENTION A chain link assembly comprising a pair of inner sidebar portions, each of the inner sidebar portions defining an aperture.  A tubular-shaped bushing is secured to the pair of inner sidebar portions.  The bushing includes a central portion and integral bushing extensions at each end of the central portion.  The central portion of the bushing extends between the inner sidebar portions and into the apertures, and the bushing extensions project beyond the inner sidebar portions.  The inside diameter of the bushing at any point along the bushing extensions is larger than the smallest inside diameter of the central portion.
Patent CA-1199862-A (CA)
Title: Cutting machine of pipe member
Inventor: AKITA SHINJI
IPC: B23D25/04
Filed: 1982-07-20
Granted: 1986-01-28
Abstract: ABSTRACT OF DISCLOSURE            A cutting machine for a pipe member comprises a plurality of cutting devices which are disposed in series along a transfer line and are movable partially or as a whole  in the transfer line, and support rollers which are disposed between the cutting devices and are movable in the transfer line, thereby to cut the pipe member at a plurality of parts simultaneously.
Patent CA-1187303-A (CA)
Title: Integrally sealed vibration dampening ball and socket   joints
Inventor: SMITH JOSEPH E
IPC: F16C11/06
Filed: 1982-07-26
Granted: 1985-05-21
Abstract: ABSTRACT OF THE DISCLOSURE           Integrally sealed vibration dampening ball and socket joints having a spherical member capable of swivel-ling relative to a socket member.  A split metallic or high strength plastic bearing ring disposed with clearance in a shell has a concave spherical surface portion in swivelling engagement with the hall member, and a pair of symetrically disposed resilient rings installed between the bearing ring and the inner surface of the shell constantly urge the bearing surface of the bearing ring in engagement with the spherical member surface to prevent rattle and to compensate for wear.  Normal loads are taken by the resilient rings, and overload and shock load are taken by the bearing ring.          A bellows seal, formed integrally with one of the resilient rings or, alternatively, formed separate is fastened at one end in the shell.  The bellows seal is held elastically at its other end around a portion of the spherical member.  A second seal, disposed in -the same manner, seals the gap between the shell and the spherical member in structures where the spherical member is a hollow ball.  Alternatively, the other end of the shell is closed by an integral or separate end cap in structures wherein the spherical member is a ball formed on the end of a stud.  The bearings are prepacked with a lubricant.
Patent CA-1191195-A (CA)
Inventor: SCHWEIKERT JOHN F
IPC: F02P5/152
Filed: 1982-07-26
Granted: 1985-07-30
Abstract: D-5,426 TIP IN KNOCK ELIMINATING SPARK TIMING CONTROL          Abstract of the Disclosure A spark timing control system for an internal combustion engine is responsive to a changing engine operating parameter signalling an engine tip-in event to retard spark timing by an amount sufficient to eliminate tip-in knock and for a predetermined time period ending 175 -300 milliseconds after initiation of the tip-in event, so that no perceptible engine performance loss results.
Patent CA-1152347-A (CA)
Inventor: ALLEN HERBERT
IPC: B67B7/00
Filed: 1982-08-05
Granted: 1983-08-23
Abstract: ABSTRACT OF THE DISCLOSURE The invention pertains to an apparatus for extracting a cork from a bottle comprising a cork-engaging member, including a corkscrew, and a holder for aligning and guiding the corkscrew, via its own diameter, with respect to the bottle.  The cork-engaging member is completely removable from the holder for independent use, and to permit the corkscrew point to be used to sever the metal foil, which covers the bottle top, and both the holder and cork engaging member to be more easily cleaned.  The holder includes a plural-ity of longitudinally extending circumferentially spaced, radially deflectable gripping elements connected to and spaced downwardly from a guide which receives the corkscrew, and are all approximately equally resiliently biased to a normal unflexed radial position.  The corkscrew itself is improved by the provision of an outer layer of friction reducing material such as a tetra-fluoroethylene or other suitable  plastic.  Additionally, the tip portion of the corkscrew is formed in an improved manner which prevents fragments of cork from breaking off and falling into the bottle even though the screw is driven completely through the cork.  Also disclosed is an improved method of making such a corkscrew.
Patent CA-1189253-A (CA)
Inventor: JAKUBCZAK EUGENE R
IPC: A61F2/20
Filed: 1982-08-10
Granted: 1985-06-25
Abstract: APPARATUS TO ASSIST ESOPHAGEAL SPEECH   ABSTRACT           An apparatus (16) to assist esophageal speech in an individual who has undergone a laryngectomy who has a tracheastome (10) and a tracheal-esophageal fistula (20).          The apparatus (16) comprising an elastomeric tube (18) with an open tracheal end (26) and an esophageal end having a one-way slit valve (24) normally closed which allows air to be diverted from the trachea to the esophagus when the tracheastome is sealed and the patient exhales.  The elastomeric air tube (18) has an elliptical cross section which contributes to higher rates of air flow and comfortable expiration pressures by reducing the bending movement of the portions of the tube located on either side of the slit or flapper valve (24).  The contacting surfaces of the slit valve are coated with an adhesion-reducing coating (46) to further reduce opening pressure.  A retaining flange (22) formed in a plane extending generally perpendicularly from the air tube does not cover the portion of the neck having the tracheastome, thus forming no significant obstruction to breathing.  A malleable planar material (40) is embedded in the flange.          The flange is formed in a generally V-shape to avoid the cleidomastoid neck muscles thus reducing the tendency of the device to be ejected.