baber/WOPTO huggingface dataset:
Patent CA-1284384-C (CA)
Title: Digital to analog converter
Inventor: LEWYN LANNY L
IPC: H03M1/02
Filed: 1987-05-28
Granted: 1991-05-21
Abstract: DIGITAL TO ANALOG CONVERTER                    Abstract of the Disclosure A digital-to-analog converter includes a decoding network and a plurality of output members such as capacitors. The decoding network receives a plurality of binary signals individually having logic levels respectively coding for binary "1" and binary "0" and individually coding for a binary value of an individually weighted significance and cumulatively coding for an analog value.  The network decodes the logic levels of the binary signals and activates output members in accordance with such decoding.  As the analog value coded by the logic levels of the binary signals increases, the output members previously activated in the plurality remain activated and other output members in the plurality become activated.  The decoding network and the output members are disposed on an integrated circuit chip.  Dependent upon their positioning on the chip, the output members have different characteristics which cause errors to be produced in the analog signal, particularly at low analog values.  This invention compensates for such errors.  The invention includes a second converter disposed on the chip with a construction substantially identical to the first converter and rotated on the chip substantially 180° relative to the first converter.  In this way, pairs of output members of the same binary significance may have, on the average, a median position in a first direction.  Individual ones of the output members in the second plurality may have the same positioning, in a second direction co-ordinate with the first direction, as corresponding ones of the output members in the first plurality.                        * * * * * * * * *
Patent CA-1302278-C (CA)
Inventor: DEMMER FRITZ
IPC: A61K47/00
Filed: 1987-06-30
Granted: 1992-06-02
Abstract: ABSTRACT     Injection solutions of torasemide which are ready to use and processes for the preparation thereof The present invention provides an aqueous, alkaline injection solution of torasemide ready for injection, wherein it contains a physiologically compatible alkaline buffer with a pH value of from 9.3 to 9.9 and with a buffer capacity of up to 0.1 val/ litre and an organic solvent in an amount of from 5 to 20% by weight selected from the group polyethylene glycols with a molecular weight of from 100 to 1500, polypropylene glycols with a molecular weight of from 50 to 1000, glycerol, propylene glycol, ethanol and propanol, the torasemide being present in a concent-ration of from 2 to 40 mg./ml.     The present invention also provides a process for the preparation of this solution, wherein torasemide is suspended in an organic solvent selected from the group polyethylene glycols with a molecular weight of from 100 to 1500 polypropylene glycols with a molecular weight of from 50 to 1000, glycerol, propylene glycol, ethanol and propanol, brought into solution by the addition of an aqueous alkali, the buffer and other adjuvants are added thereto, the pH value is adjusted to 9.3 to 9.9 by the addition of acid or alkali and the solution is filtered off from undissolved particles and sterilised.
Patent CA-1283509-C (CA)
Title: Through-the-wash fabric conditioning compositions
Inventor: STELTENKAMP ROBERT J
IPC: C11D3/20
Filed: 1987-07-09
Granted: 1991-04-30
Abstract: THROUGH-THE-WASH FABRIC CONDITIONING COMPOSITIONS     ABSTRACT OF THE DISCLOSURE     Fabric conditioning compositions which impart softness and anti-static properties are provided for through-the-wash use in conjunction with machine dryers.  The fabric conditioning com-positions comprise complexes of specified tertiary amine and multi-functional carboxylic acids.
Patent CA-1293633-C (CA)
Inventor: GREYVENSTEIN LOURENCE C J
IPC: B65D33/16
Filed: 1987-07-22
Granted: 1991-12-31
Abstract: ABSTRACT         A method of manufacturing a garbage bag comprises (a) extruding a tube of plastics material; (b) lay-ing the tube flat to form front and rear panels; (c) welding the tube transversely to the direction of extrusion with a set of two straight end welds at suitably spaced locations; (d) cutting the material at an end cut between each pair of end welds, and (d) cutting the material at sinusoidal separating cut which will form an open end for for two bags between a pair of end welds and which extends generally transversely to the bag. The separating cut provides cut-outs are formed in the said open ends to leave projecting tie parts which are capable of being tied together to close the opening.
Patent CA-1325294-C (CA)
Inventor: GLORIOSO JOHN D
IPC: C02F11/13
Filed: 1987-07-28
Granted: 1993-12-14
Abstract: ABSTRACT         A system is described for producing small uniform pellets of predetermined size which are substantially free of fines from mechanically dewatered sewage sludge.  The system includes a process and apparatus for mixing the dewatered sludge with previously dried, recycled particles of said sludge, drying said mixture in a thermal drier, separating a substantial portion of the dried solids from the drier off gas, clarifying said separated solids to separate the pellets of predetermined size, oversize pellets and undersize pellets and particles, mechanically crushing the oversize pellets and admixing the crushed oversize pellets with the undersize pellets and particles, and recycling said mixture by mixing said mixture with incoming dewatered sludge to the drier.
Patent CA-1275710-C (CA)
Title: Amplitude equalizer
Inventor: SUZUKI TOSHIAKI
IPC: H04B3/14
Filed: 1987-08-13
Granted: 1990-10-30
Abstract: AMPLITUDE EQUALIZER     ABSTRACT OF THE DISCLOSURE      An amplitude equalizer which adds the outputs of two circuit means having opposite characteristics, whereby a flat delay-frequency characteristic and powerful frequency-amplitude characteristic are obtained.          Further, a variable amplitude equalizer including two of the same connected in parallel and a variable attenuator inserted in one of the parallel paths.  Still further, an automatic amplitude equalizer wherein the variable attenuator is feedback controlled by an equalization residual.  The amplitude equalizer includes a minimum phase circuit and non-minimum phase circuit connected in series.
Patent CA-1290777-C (CA)
Title: Engine with sealing head seat ring
Inventor: KOCH JULIUS F JR
IPC: F01N1/00
Filed: 1987-08-17
Granted: 1991-10-15
Abstract: ENGINE WITH SEALING HEAD SEAT RING            Abstract of the Disclosure In a diesel engine having an angled cylinder bank with an individual cylinder head received on a sloping mounting surface over which return oil flows, a cylinder head wear ring or seat ring is provided to accept wear between the head mounting flange and the mounting surface.  The seat ring is modified to incorporate around its outer periphery a seal having resilient beads that engage the opposed mounting and head flange surfaces to prevent oil from passing through the joint and entering the engine exhaust system.
Patent CA-1302881-C (CA)
Inventor: JANIS RONALD A
IPC: A61K35/38
Filed: 1987-09-04
Granted: 1992-06-09
Abstract: ABSTRACT      Endogenous calcium channel modulating substances isolated from mammalian tissue are disclosed.  Said substances act on dihydropyridine-sensitive calcium channels to reversibly modulate the activity thereof.
Patent CA-1330736-C (CA)
Inventor: ISHIKAWA KATSUKIYO
IPC: G03F7/033
Filed: 1987-09-21
Granted: 1994-07-19
Abstract: Abstract:          The present invention is directed to a water-developable photosensitive resin plate suitable for the manufacture of a relief printing plate having high resistance to water-based inks, high resilience and excellent form stability, which comprises:            (A)  a copolymer comprising units of (i) an aliphatic conjugated diene monomer (ii) an .alpha., .beta.-ethylenically unsaturated carboxylic acid and (iii) a polyfunctional vinyl monomer, optionally with (iv) a monofunctional vinyl monomer, the content of the aliphatic conjugated diene monomer (i), the .alpha., .beta.-ethylenically unsaturated carboxylic acid (ii), the poly-functional vinyl monomer (iii) and the mono-functional vinyl monomer (iv) being respectively from about 5 to 95 mol %, from about 1 to 30 mol %, from about 0.1 to 10 mol % and 0 to 70 mol % based on the combination of those monomeric components;             (B)  a basic nitrogen atom-containing compound;       (C)  an ethylenically unsaturated  monomer; and (D)  a photopolymerization initiator.
Patent CA-1277965-C (CA)
Title: Pill dispenser
Inventor: SCHUSTER WILHELM
IPC: B65D83/04
Filed: 1987-09-21
Granted: 1990-12-18
Abstract: Abstract of the Disclosure:  A dispenser for shaped solids, in particular for tablets and pills of very small format, is described.  In a cylindrical housing, a dosing means is inserted between a stock container and a collecting chamber, part of the said dosing means being rotatable about the longitudinal axis of the housing.  The dosing means consists of three parts, ie. a) a cylindrical ring part from whose inner wall a lug projects radially, b) a dosing wheel which can be inserted into the ring part and rotated about the longitudinal axis of the housing, and c) a base part which can be inserted into the dosing wheel. The dosing wheel has a perforated plate with dosing ori-fices arranged in the peripheral region.  A rim projects at right angles from the peripheral edge of the perforated plate, locking notches assigned to the dosing orifices being provided on the inner wall of the said rim.  The base part is inserted into the rim of the dosing wheel and is provided with an ejection hole for the tablet or pill to be dispensed.
Patent CA-1315076-C (CA)
Title: Dense skin ceramic structure and method of making the same
Inventor: LUSZCZ STANLEY J
IPC: C04B35/65
Filed: 1987-09-15
Granted: 1993-03-30
Abstract: ABSTRACT The invention concerns self-supporting ceramic structures, including ceramic composite structures embedding a filler, and methods of making them.  The ceramic structures comprise a polycrystlline material made by oxidation of a body of molten parent metal with an oxidant.  The poly-crystalline material has a first region substrate surmounted by a terminal region stratum which is integral with the first region.  The terminal region stratum which is harder and of denser, finer crystalline structure than the first region substrate and is formed in a reaction stage subsequent to the reaction stage in which the first region of polycrystalline material is formed.  Growth of the first stage is attained by by attenuating or interrupting the transport of molten parent metal to the first region under conditions which nonetheless leave or maintain therein enough oxidizable molten parent metal to form the polycrystalline material of the terminal region.
Patent CA-1299525-C (CA)
Title: Radio frequency method of sealing an article
Inventor: SCHNELL WILLIAM J
IPC: A61J1/00
Filed: 1987-10-09
Granted: 1992-04-28
Abstract: ABSTRACT         A method of radio frequency sealing attaches a seal member (30) to a cylindrical, hollow, access port (20) of a container.  The method uses two sets of spaced apart die elements (12a,b and 14a,b) to generate an axial electric field along a region where the port and seal member overlap.  An external peripheral ring (42) is formed about an exterior surface of the port.          The method can be used with containers having a sealed periphery as well as those previously filled with a fluid.
Patent CA-1336452-C (CA)
Inventor: HULSTROM ROLAND L
IPC: G01N21/53
Filed: 1988-02-24
Granted: 1995-07-25
Abstract: An atmospheric optical calibration system is provided to compare actual atmospheric optical conditions to standard atmospheric optical conditions on the basis of aerosol optical depth, relative air mass, and diffuse horizontal skylight to global horizontal photon flux ratio. An indicator can show the extent to which the actual conditions vary from standard conditions. Aerosol scattering and absorption properties, diffuse horizontal skylight to global horizontal photon flux ratio, and precipitable water vapor determined on a real-time basis from optical and pressure measurements are also used to generate a computer spectral model and for correcting actual performance response on a photovoltaic device to standard atmospheric optical condition response on a real-time basis as the device is being tested in actual outdoor conditions.
Patent CA-1307638-C (CA)
Title: Modular platform assembly
Inventor: WYSE STEVEN J
IPC: E04H3/24
Filed: 1988-03-25
Granted: 1992-09-22
Abstract: A B S T R A C T     A modular platform assembly is provided,  The assembly has a multiplicity of deck sections of rectangular shape which are connected together or interlocked to produce a platform of desired size.  The deck sections are supported on legs which can be used in telescoping relationship to support the deck sections at various desired heights.  Cer-tain inner deck sections need only be supported on one leg, which facilitates assembly of the sections.  Guard rails can also be employed around edges of the platform and sup-ported by the legs.  The legs can be supported on adjustable feet to provide a uniform level for the deck sections.  Mod-ular stairs are also provided for easy access to and egress from  the platform.  The stairs are designed to accommodate platforms of various heights.
Patent CA-1295872-C (CA)
Title: Hitch and drive structure for pto-driven, semi-integral implement
Inventor: STEPHENSON ROGER D
IPC: A01B71/06
Filed: 1988-05-18
Granted: 1992-02-18
Abstract: HITCH AND DRIVE STRUCTURE FOR PTO-DRIVEN, SEMI-INTEGRAL IMPLEMENT Abstract of the Disclosure A hitch adapter is attached to the tongue of an implement having components adapted for being driven by a tractor power take-off shaft and is constructed to permit the implement to be semi-integrally mounted either to a tractor having a hitch arrangement consisting only of a three-point hitch or to a tractor having a hitch arrangement wherein a quick coupler is carried by its three-point hitch without necessitating a change in the length of a drive shaft interconnecting the tractor power take-off shaft with an input shaft of a transmission assembly carried by the implement tongue.
Patent CA-1296103-C (CA)
Title: High-speed, high capacity, fault-tolerant, error-correcting storage system
Inventor: GOODLANDER THEODORE J
IPC: G06F11/10
Filed: 1988-05-24
Granted: 1992-02-18
Abstract: FAULT-TOLERANT, ERROR-CORRECTING STORAGE SYSTEM            Abstract of the Disclosure A storage device system (40) for computers capable of dynamically and transparently reconstructing lost data is described comprising a plurality of first individual storage devices (16) for storing digital nformation and a second individual storage device (16) for storage devices (16') for storing error/recovery code bits.  There is logic for generating and storing error/recovery code bits in the second individual storage device (16') according to a pre-defined parity checking algorithm for the digital information and logic for using the error/recovery code bits to reconstruct a changed bit in error in the digitalo information according to the parity checking algorithm.  An interface (60, 56, 46, 18, 14) is disposed to receive read and write requests from a user CPU (10, 54) and a plurality of storage device controllers (60') are connected between the interface and respective ones of the plurality of storage devices (16) for interfacing with the plurality of storage devices (16) and operating them concurrently.  The CPU (44) includes logic (48) for immediately acknowledging a write to an associated storage device (16) upon the data being placed in a buffer memory (64), for checking data in the buffer memory (64) and indicating it as having been read from an associated storage device (16) without an actual read thereof when a read request therefor is received from a user (10, 54) whereby the buffer memory (64) acts as a cache memory in such cases.
Patent CA-1336997-C (CA)
Inventor: LAROCHE PIERRE
IPC: E01F9/588
Filed: 1988-10-21
Granted: 1995-09-12
Abstract: There is described a marking kit which comprises material which is capable of forming a polymeric matrix together with glass beads for incorporation into such matrix; surface treated glass beads suitable for incorporation into such matrix; a process for the surface treatment of such glass beads; a reflective surface marking comprising a synthetic matrix incorporating such glass beads; and a process for the reflective marking of a surface. The glass beads have been surface-treated so that the surface tension of the treated beads is greater than the surface tension of the matrix-forming material, but less than 70 mN/m. In the surface treatment, the beads are brought into contact with at least one organic or organo-metallic compound selected from chloro, bromo, iodo,amino, chloroamino, mercapto and epoxy compounds to form a coating on their surface of a type which makes them hydrophobic and may give the beads a surface tension within the range 30 to 51 mN/m. Thus treated beads are suitable for incorporation in layers of a matrix material to form a reflective marking for a pavement. The marking may be formed by depositing the required thickness of matrix-forming material and sprinkling the treated beads on the surface of that material before it hardens.
Patent CA-1316925-C (CA)
Title: Quinolinecarboxylic acid derivatives
Inventor: KISE MASAHIRO
IPC: A61P31/04
Filed: 1988-11-07
Granted: 1993-04-27
Abstract: ABSTRACT Quinolinecarboxylic acid derivatives of the formula (I) and pharmaceutically acceptable salts thereof, wherein R1 is hydrogen, straight or branch chain lower alkyl or phenyl unsubstituted or substituted by one or more halo moieties; R2 is hydrogen or straight or branch chain lower alkyl; and R3 is hydrogen, halo or straight or branch chain lower alkoxy, are useful for treating bacterial infections in humans and animals.
Patent CA-1325361-C (CA)
Title: Suspension primaire pour vehicules ferroviaires
Inventor: PINTO GEORGES
IPC: B61F5/30
Filed: 1988-12-02
Granted: 1993-12-21
Abstract: Suspension primaire pour véhicules ferroviaires, comprenant deux boîtes d'essieu par essieu, chaque boîte d'essieu étant reliée au châssis de bogie par une articulation, un premier ressort situé, par rapport à l'axe des roues, de l'autre côté de l'articulation et un deuxième ressort situe du même côté que l'articulation, chaque ressort prenant appui, à une extrémité, directement sur le châssis, et à l'autre extrémité, sur un bras solidaire de la boîte d'essieu et constituant un appui sensiblement horizontal. L'axe du deuxième ressort est décalé par rapport à l'axe de l'articulation d'une distance telle que les efforts verticaux appliqués sur l'articulation sont supprimés.
Patent CA-1308360-C (CA)
Title: Coating medical devices with cationic antibiotics
Inventor: LEE CLARENCE C
IPC: A61L27/54
Filed: 1988-12-05
Granted: 1992-10-06
Abstract: Abstract of the Disclosure A medical device having long-lasting bactericidal properties and a method for making the same is provided.  The material from which the medical device is made, the substrate, carries a negatively-charged group having a pKa of less than 6.  A cationic antibiotic is ionically bonded to the negatively-charged group.  The negatively-charged group may be a portion of a larger carrier molecule.  The carrier molecule is bound to the substrate such that the negatively-charged group is exposed for ionic interaction with the cationic antibiotic.  Heparin is an ideal carrier molecule because it has both anti-bacterial adhesion activity and anti-thrombogenic activity.
Patent CA-1334370-C (CA)
Inventor: NISHIIKE UJIHIRO
IPC: C25F1/06
Filed: 1988-12-22
Granted: 1995-02-14
Abstract: A grain oriented silicon steel sheet having a low iron loss and not causing degradation of properties even through strain relief annealing is produced by applying ultrasonic vibrations to the surface of the sheet after secondary recrystallization annealing.
Patent CA-1322662-C (CA)
Inventor: SLUTZ DAVID E
IPC: B23K35/32
Filed: 1989-02-02
Granted: 1993-10-05
Abstract: BRAZED THERMALLY-STABLE POLYCRYSTALLINE DIAMOND COMPACT        WORKPIECES AND THEIR FABRICATION                 ABSTRACT OF THE DISCLOSURE Disclosed is a brazed implement comprising a thermally-stable polycrystalline diamond compact, e.g. a compact of self-bonded diamond particles having a network of inter-connected empty pores dispersed throughout the compact, bonded to another of said compact or bonded to a cemented carbide support by a brazing filler metal disposed therebetween. The brazing metal comprises an alloy having a liquidus above about 700°C and containing an effective amount of chromium. Translational shear strengths exceed about 50 kpsi even upon furnace cycling of the brazed implements and often exceed 90 kpsi. The method for fabricating the brazed implement also is disclosed.
Patent CA-1329780-C (CA)
Title: Internal combustion engine
Inventor: MERRITT DAN
IPC: F02B75/10
Filed: 1989-05-04
Granted: 1994-05-24
Abstract: ABSTRACT OF THE DISCLOSURE            Title: Internal Combustion Engine An internal combustion engine has a pair of first and second cylinders (12,14) communicating with a combustion chamber (20) the first cylinder having a larger swept volume than the second cylinder. First and second pistons (16,18) are provided in the cylinders.  An inlet port is provided in the first cylinder for delivering a charge of unthrottled fuel whilst a fuel injector (36) is controlled by a control means (37) to deliver a charge of fuel into the second cylinder (14) as soon as possible after commencement of an induction stroke of the second piston.          Movement of the fuel/air mixture from the second cylinder (14) into the combustion chamber (20) is prevented until the second piston (18) is at or near its inner dead centre position.  The second piston (18) may be formed as a protrusion on the crown of the first piston (16) with the second cylinder (14) being an extension of the first cylinder (12).  The engine can be a compression ignition engine in which ignition takes place spontaneously in the combustion, chamber, or alternatively a catalyst or hot surface ignition means can be provided in the combustion chamber.
Patent CA-1324946-C (CA)
Title: Apparatus for removing residues from parts of plastics processing machines
Inventor: SCHMIDT RUDOLF
IPC: B08B7/00
Filed: 1989-05-26
Granted: 1993-12-07
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus for removing plastic residues from parts of plastics processing machines includes a vessel which is closed in air tight manner by a lid and contains a liquid heat transfer fluid which is heated by heating elements to a temperature above the melting point of the plastic material adhering to the parts.  To shorten the working cycle for heating and cooling the heat transfer fluid and of the overall cleaning process a pump circulates the heat transfer fluid through the interior of the vessel.  To prevent decomposition of the heat transfer fluid, inert gas is introduced into the space above the liquid level of the heat transfer fluid to displace the volume of prevailing air.