baber/WOPTO huggingface dataset:
Patent CA-2033876-C (CA)
Title: High frequency heating apparatus
Inventor: ISHII KAZUNORI
IPC: H05B6/68
Filed: 1991-01-09
Granted: 1994-09-20
Abstract: ABSTRACT OF THE DISCLOSURE     A high frequency heating apparatus includes a casing, an inverter enclosed in the casing, a magnetron supplied with high frequency voltage from the inverter, and three attachment plugs each connected to one of external power supplies of different output voltages.  The attachment plugs are connected to the inverter input side via respective power supply selecting switches. The apparatus further includes three display panels one of which is selectively attached to the apparatus.   Each display panel has an indicia indicative of one of the power supply voltages used and two projections selectively turning off the other two power supply switches when attached to the apparatus.
Patent CA-2034978-C (CA)
Title: Self-locking nozzle blocks for steam turbines
Inventor: HALBERG WALTER
IPC: F01D11/00
Filed: 1991-01-25
Granted: 2000-10-31
Abstract: An axial flow steam turbine has a self-locking nozzle block wherein the nozzle block has radially inwardly and outwardly extending flanges that seat in grooves formed in spaced shrouds of the nozzle ring, with locking pins provided, in bores in a rear arcuate section of the nozzle ring, formed from the material that has a thermal coefficient of expansion greater than the thermal coefficient of expansion of the material from which the nozzle ring is formed. Preferably, the nozzle block is formed from a material having a thermal coefficient of expansion comparable to that of the pins. Steam passing through the turbine heats its assembly such that the locking pins force the flanges of the nozzle block into sealing contact with a first arcuate section of the nozzle ring so as to prevent vibration and loosening of the nozzle block in the nozzle ring.
Patent CA-2038010-C (CA)
Title: N-sulfonyloxaziridines as bleaching compounds
Inventor: BATAL DAVID JOHN
IPC: A61K8/00
Filed: 1991-03-11
Granted: 1996-10-15
Abstract: A bleaching composition includes from 0.5 to 50% of a surfactant and from 0.05 to 10% of an oxygen transfer agent selected from the group consisting of 2-benzenesulfonyl-3-phenyloxaziridine, 2-benzenesulfonyl-3-(4-nitrophenyl)oxaziridine, 2-(4-chlorobenzenesulfonyl)-3-(4-cholorphenyl) oxaziridine, 2-benzenesulfonyl-3-(4-methylsulfinylphenyl) oxaziridine, 3-butyl-1,2-benzisothiazole-1,1-dioxide oxide, 2-benzenesulfonyl-3-(3-pyridinyl) oxaziridine.
Patent CA-2039061-C (CA)
Title: Circuit pack cooling using turbulators
Inventor: AZAR KAVEH
IPC: H05K7/20
Filed: 1991-03-26
Granted: 1996-06-25
Abstract: Disclosed is a fluid-cooled circuit pack which includes heat generating components on a front surface of a circuit board and another surface opposite to the front surface to create a channel for the flow of cooling fluid over the components. An array of rods, or turbulators, is provided on the surface opposite the printed circuit board front surface to create disturbances in the fluid flow and enhance heat transfer.
Patent CA-2045226-C (CA)
Title: Nonvolatile memory management in a data processing network
Inventor: ALLEN JAMES DOUGLAS
IPC: G06F12/00
Filed: 1991-06-21
Granted: 1996-01-30
Abstract: A system and method for managing the nonvolatile memory capacity of individual workstations within a data processing network having a multiplicity of workstations with resident nonvolatile memory devices.  In the context the embodying  network,  the  invention  provides  for  a selective querying of workstations to determine unused disk  capacity,  a  comparison  of  such  capacity  to  a threshold defined for the respective workstation, and the generation of an event message indicating sub-threshold capacity.   The  event  is  subject  to  local  or  network logging,  and  can  include  information  identifying  the workstation and its disk capacity status.  A refinement of the invention contemplates the reallocation of disk capacity   within   the   network   to   avoid premature termination of programs executing on a workstation upon the  finding of  a  sub-threshold  capacity  in  the workstation.
Patent CA-2047819-C (CA)
Title: Loop-handle bag with improved accessibility feature
Inventor: NEWMAN WILLIAM ROBERT
IPC: B65D33/06
Filed: 1991-07-24
Granted: 2002-07-09
Abstract: The present invention provides a distinctive bag for receiving and containing selected articles. The bag includes a front panel having two opposed side regions and a top edge region. A back panel having two opposed side edge regions and a top edge region is connected in facing relation to the front panel along the side edge regions thereof. A top gusset is connected to the top edge regions of the front panel. A handle web also connects to the top edge regions of the front and back panels to provide a carrying loop. The carrying loop is constructed to bridge over the top gusset and between the front and back panels in a configuration arranged to provide for an arm-suspension of the bag with the loop. The carrying loop provides at least two loop faces with each of the loop faces having at least one hand-grip region. Formed in each hand-grip region, there is a hand-grip opening configured to provide for a hand suspension of the bag. The carrying loop has an appointed separation section located between the hand-grip openings. The appointed separation section extends generally aligned with the top edge region of the front panel and is constructed with sufficient tensile load capacity to permit the arm-suspension of the bag while the bag is substantially filled with the articles.
Patent CA-2048815-C (CA)
Title: Process for producing sodium hydroxide and ammonium sulphate from sodium sulphate
Inventor: THOMPSON JACK S
IPC: C25B1/16
Filed: 1991-08-08
Granted: 1997-12-23
Abstract: A process for producing sodium hydroxide and ammonium sulfate by electrolysing an aqueous solution of sodium sulfate is disclosed.  The process is carried out in a three-compartment electrolytic cell having a central compartment separated from an anode and a cathode compartment by, respectively, anion selective and cation selective ion exchange membrane.  The solution of sodium sulfate is circulated through the central compartment, while solutions of sodium hydroxide and ammonium sulfate are circulated, respectively, through the cathode and the anode compartment.  During the process, ammonia is added to the anolyte to at least partially neutralize sulfuric acid produced in the anode compartment and reduce the back migration of protons from the anolyte into the central compartment.  As a result, high purity ammonium sulfate of commercial value higher than that of sulfuric acid is produced with high current efficiency and in concentrations higher than those achievable for sulfuric acid.
Patent CA-2049295-C (CA)
Title: Appareil de lecture de signaux acoustiques
Inventor: INANAGA KIYOFUMI
IPC: H04R5/033
Filed: 1991-01-18
Granted: 1998-06-23
Abstract: Avec l'appareil de reproduction de signaux acoustiques de la présente invention, des signaux de référence de détection de position émanant d'une source de signaux de référence sont captés par une paire de capteurs de signaux placés à deux endroits sur la tête M d'un auditeur, l'angle d'orientation de la tête et la distance entre celle-ci et la source des signaux de référence sont calculées par des unités de traitement utilisant les signaux captés, les caractéristiques de transmission par rapport à une source sonore imaginaire placée à un endroit quelconque sont déterminées à l'aide de la distance entre la tête et la source de signaux de référence et de l'angle d'orientation de la tête, et les signaux acoustiques sont traités par des dispositifs utilisant ces caractéristiques de transmission pour donner une reproduction stéréophonique satisfaisante de la source sonore imaginaire. Quand le niveau de sortie de l'un des capteurs devient inférieur à un niveau de référence donné, le fait est détecté par un détecteur dont le signal de sortie est utilisé par un contrôleur pour faire varier les signaux acoustiques transmis au casque d'écoute de façon à donner une reproduction stéréophonique stable. Avec le casque d'écoute de la présente invention, une paire de capteurs captent de façon stable des signaux représentant l'angle d'orientation de la tête de l'auditeur par rapport à la source sonore quand celui-ci porte le casque sur lequel ces capteurs sont montés avec un espacement entre eux.
Patent CA-2052059-C (CA)
Title: Method and device in the drying section of a paper machine in the threading of the web
Inventor: ILVESPAEAE HEIKKI
IPC: D21F5/04
Filed: 1991-09-26
Granted: 1999-02-16
Abstract: ABSTRACT OF THE DISCLOSURE           A method and device in a multi-cylinder dryer of a paper machine in the threading of the paper web, the threading taking place substantially without a system of threading ropes, which provides a reliable transfer and support effect for the leader is disclosed.  The web is passed along a meandering path, in twin-wire draw, over drying cylinders and, in single-wire draw, on a drying wire over drying cylinders and leading suction cylinders or rolls.  The leader is guided by means of air blowings extending across a substantial proportion or the whole of its width.  The air blowings are applied from a doctor beam to an area proximate to the tip of the doctor blade at an acute angle in relation to the plane of the doctor blade.
Patent CA-2053826-C (CA)
Title: Pharmaceutical compositions active in the therapy of neurological affections in aids patients
Inventor: LA GRECA PIETRO
IPC: A61K31/7052
Filed: 1991-10-21
Granted: 2002-12-17
Abstract: For the therapy of neurological complications in AIDS sufferers, the use of pharmaceutical compositions containing as an active principle at least one compound selected from the group consisting of S-adenosyl-L-methionine salt, 5-methyl-tetrahydro-folic acid, 5-formyltetrahydro-folic acid, when the active principle consists of S-adenosyl-L-methionine and of a derivative of tetrahydro folic acid, the weight ratio between the S-adenosyl-L-methionine salt and 5-methyltetrahydrofolic acid or 5-formyl-tetrahydrofolic acid is comprised between 10/1 and 4/1, in pharmaceutical form, suitable for oral or parenteral administration.
Patent CA-2055315-C (CA)
Title: System for performing fast data access operations
Inventor: COOPER ROBERT W
IPC: G06F13/40
Filed: 1991-11-12
Granted: 1999-03-16
Abstract: A system and method are described which provide for fast sequential access of stored data, as required, for example, in the performance of multiply/accumulate operations in neural network calculations and other sequential computations.  The system includes a video dynamic random access memory (VRAM) with a shift register, a digital signal processor (DSP), and a data/address/control bus for coupling the DSP and VRAM.  The VRAM has a parallel access port and a serial access port, and the DSP has a first input-output (I/O) port and a second I/O port.  The second I/O port of the DSP is coupled, via the bus, to the parallel- and serial-access ports of the VRAM. In response to data applied via the first I/O port, the DSP transfers the applied data, via the second I/O port, the data bus, and the parallel (or serial) access port, to the VRAM for storage.  The stored data is then accessed (by the DSP) as a serial sequence via the serial access port.  The method employed by the system in providing such access includes the steps of transferring the stored data in parallel to the shift register, and outputting the data as a synchronized (clocked) serial sequence from the shift register.
Patent CA-2058429-C (CA)
Title: Tower packing cartridge
Inventor: PEDERSEN GEORGE C
IPC: B01D53/18
Filed: 1990-03-22
Granted: 1995-09-26
Abstract: A tower packing cartridge (14) is formed of strips (23) of  fabric-like  material  placed  in  face-to-face contact such that the planes of the strips are parallel to the general flow direction through the cartridge.   The fabric-like  material  is formed  of  generally straight, relatively stiff strands (16) of mono-filament material, arranged  in  a  repeating  pattern  which  is  preferably generally triangular in cross section in both directions.         The  construction provides a substantially non-nestable structure when strips are placed in face-to-face contact, such  that  the  cartridge  has  an  extremely  high  void fraction.  The fabric-like material, in itself known, when assembled in this manner, achieves unique and surprising results in relation to exceptional  uniformity of flow distribution across the entire face of the cartridge while at the same time maintaining extremely high void fraction to keep energy losses at a minimum during operation.
Patent CA-2059825-C (CA)
Title: Olefin polymer pour point depressants
Inventor: HEILMAN WILLIAM J
IPC: C10N20/04
Filed: 1992-01-22
Granted: 1997-05-27
Abstract: A  pour  point  depressant  for  lubricating  oils comprises an olefin copolymer which contains alkyl side chains having 8, 12 and 14 carbon atoms, wherein the average side chain length in the copolymer is 10.5 to 12Ø
Patent CA-2063504-C (CA)
Title: Foot prosthesis having auxiliary ankle construction
Inventor: PHILLIPS VAN L
IPC: A61F2/66
Filed: 1992-03-19
Granted: 1998-08-11
Abstract: A prosthetic foot characterized by a forefoot portion having a heel portion demountably and interchangeably connected thereto. The forefoot portion and heel portion are fabricated from polymer impregnated and encapsulated laminates or other reinforcing fiber, including such materials as carbon fibers and/or fiberglass or synthetic fibers such as Kevlar. interchangeablility of heel and forefoot portion permits interchangeability of heel and forefoot portions to match the weight, stride and activity schedule of the wearer utilizing the prosthetic foot. Auxiliary  ankle member and wedge means between the forefoot portion and the heel portion provide additional adjustability.
Patent CA-2063636-C (CA)
Title: Therapeutic treatment device
Inventor: STOJANOVIC BRANISLAV
IPC: A61H11/00
Filed: 1992-03-20
Granted: 2001-03-06
Abstract: A device for therapeutic treatment of a body including a segment comprising spatially separated bulges. A plurality of segments may optionally be linked together so as to increase the area of the body upon which the device is placed.
Patent CA-2066177-C (CA)
Title: Method and apparatus for synchronizing timing signals for helical scan recorder
Inventor: HUGHES TIMOTHY C
IPC: G11B20/12
Filed: 1990-11-06
Granted: 1996-06-25
Abstract: Method and apparatus are provided for developing a digital timing signal (HEAD SYNC) indicative of when a head (R1) of a helical scan recorder (30) is positioned over a recorded stripe on magnetic tape (32). The method involves rotating a drum (36) upon which a head (R1) is mounted while the magnetic tape (32) is transported past the drum (36) at a speed greater than the nominal speed at which stripes were recorded on the tape (32).  Given the geometry of the system and format of the tape (32), the head (R1) is eventually able to recognize a pattern of digital data.  The timing of the recognition of the pattern of digital data is used to determine the precise time, relative to each rotation of the drum (36), that the head (R1) ceases to traverse a stripe and the precise time during each rotation of the drum that the head (R1) begins to traverse a stripe. The determination of the edges of the digital timing signal (HEAD SYNC) is repeated upon every rotation of the drum (36). A servo timing signal (SERVO SYNC) for a servo head (S) (also mounted on the drum (36)) is generated in ninty (90) degree phase relationship to the digital timing signal (HEAD SYNC).
Patent CA-2078204-C (CA)
Title: Luggage
Inventor: WANG KING-SHEN
IPC: A45C13/26
Filed: 1992-09-14
Granted: 1995-11-07
Abstract: A travel bag having a handle assembly consisting of an elongated handle bar movably inserted in a channel plate for carrying, and a U-shaped auxiliary handle pivoted to the channel plate for lifting.  The travel bag also has a fixed castor on a bottom edge thereof in the middle, a first pair of opposite swivel castors on one end of the bottom edge, and a second pair of opposite swivel castors on an opposite end of the bottom edge.  The fixed castor and either pair of opposite swivel castors are in contact with the ground as the travel bag is moved.
Patent CA-2080187-C (CA)
Title: Multi-media computer operating system and method
Inventor: CARMON DONALD EDWARD
IPC: G06F9/46
Filed: 1992-10-08
Granted: 1999-02-16
Abstract: An operating system for scheduling execution of a random set of periodically recurring hard, real-time tasks encountered in multi-media computer system applications and which is useful in a multi-tasking computer operating environment. Periodically recurring computer tasks having relatively short execution periods for which execution results are absolutely required in hard, real-time environments such as multi-media systems, create a significant task scheduling overhead reducing the available processor resource. Overhead processing at task invocation is eliminated in the invention by placing all active recurrent tasks in an execution queue, regardless of the task s current state of activity and by reprioritizing the order of execution of the tasks in the queue whenever a given task execution is completed. Measured by reduction in task scheduling overhead consumed by the processor in scheduling the tasks, this achieves a 50-100% improvement over conventional scheduling and operating systems.
Patent CA-2080712-C (CA)
Title: Double-barrel bolt action repeating firearm
Inventor: SZECSEI JOZSEF
IPC: F41A3/24
Filed: 1992-10-16
Granted: 2002-09-10
Abstract: A bolt assembly is provided fox a double-barrel repeating firearm, such as a rifle or a shotgun. The bolt assembly is adapted to fit in the receiver of the double-barrel firearm. The halt assembly comprises a bolt body which connects to first and second breech bolts, and which also couples to a halt collar. The bolt collar has a bolt handle for operating the bolt assembly. The bolt body and breech bolts have recesses for accepting first and second firing pin assemblies. The firing pin assemblies include first and second cocking pieces, which are both cocked by the action of the bolt collar. Once cocked, the cocking pieces can be released independently of each other for firing using the trigger. Pulling the bolt assembly rearwards ejects the fired cartridges through an ejection port on the receiver. The receiver also includes a cartridge injector port which couples to a magazine capable of storing additional cartridges. During the forward travel, the bolt assembly reloads the firing chambers with cartridges from the magazine.
Patent CA-2083405-C (CA)
Title: Polyaspartic acid as a calcium carbonate and a calcium phosphate inhibitor
Inventor: KOSKAN LARRY P
IPC: C02F5/10
Filed: 1992-03-19
Granted: 2002-08-20
Abstract: .beta.-Polyaspartic acid having a weight average molecular weight of 1000 to 5000 produced by hydrolysis of anhydropolyas-partic acid, exhibits; a high degree of calcium carbonate and calcium phosphate inhibition.
Patent CA-2083902-C (CA)
Title: Pipe coupling
Inventor: STRAUB IMMANUEL
IPC: F16L55/172
Filed: 1992-11-27
Granted: 1996-03-19
Abstract: An elastomeric sealing sleeve 6 is enclosed by an annular housing 1 which is split longitudinally and can be drawn together in the peripheral direction by means of a clamping screw 22.  The clamping screw 22 passes with clearance through two U-shaped clamping members 16, 17 which are accommodated in clamping brackets 12, 13 fastened to the housing 1.  The clamping members 16, 17 are supported with the ends of their legs on flat wall sections 12a, 13a of the clamping brackets 12, 13.  The head 24 as well as a nut 25 of the clamping screw 22 bear against arched supporting surfaces 20a of the clamping members 16, 17. While the housing 1 is being drawn together, the clamping members 16, 17 can move relative to the shank 23 of the clamping screw 22, in the course of which the screw head 24 and the nut 25 can roll on the arched outer surface 20a.  The screw shank 23 is therefore subjected to little or no bending stress.
Patent CA-2085992-C (CA)
Title: Electronic device designed to permit detachable attachment of an external memory device thereto
Inventor: KOBAYASHI TUNEO
IPC: G04G21/00
Filed: 1992-04-15
Granted: 1999-07-13
Abstract: A wrist watch (1) is provided with a cover member (3) attached to a wrist watch case (2) by a coupling portion (3) in a openable/closable manner.  A liquid crystal display device (4) to display time is incorporated in the cover member (3).  A retaining section (7) for retaining a disk-like data memory is provided on the upper surface of the wrist watch case (2).  The data memory in the retaining section (7) is securely held with the cover member (3) closed.  Data in the disk memory (9) is read and processed by the electronic circuitry (2b) of a watch, and is sent to the liquid crystal display device (4) via a flexible circuit board (2e).  The data is then converted into a time which is in turn displayed.  The data memory can therefore be very easily attached or detached, and is securely held.  The wrist watch itself can be made compact.  Replacing the data memory with another one can provide advantages such as displaying various types of data.
Patent CA-2089500-C (CA)
Title: Method and apparatus for measuring steam density by neutron method
Inventor: NISHIMURA TATSUO
IPC: E21B47/00
Filed: 1993-02-15
Granted: 1996-08-20
Abstract: A method and an apparatus capable of measuring the density  of  steam  within  a  steam  pipe  even  in  limited environmental conditions such as in a steam injection well.  A vessel which accommodates therein first and second neutron detectors disposed in mutual longitudinal alignment with a neutron source interposed therebetween and in which the second detector is  covered with  a neutron  shielding capable  of absorbing thermal neutrons while allowing epithermal neutrons to penetrate therethrough is inserted into the steam pipe together with a thermal neutron shielding sheet completely surrounding the vessel.  From the neutrons which were emitted from the neutron source and penetrated through the neutron shielding and which have again penetrated through the neutron shielding in the opposite direction to again reach a steam region,  those epithermal neutrons which have not undergone transformation to thermal neutrons within the steam region are detected by the first and second detectors while the thermal neutrons resulting from the transformation are detected by the first detector only.  The steam density is determined on the basis of a cadmium ratio derived from the counts of the two detectors.
Patent CA-2093510-C (CA)
Title: Oxysulfonyl carbamates
Inventor: PICARD JOSEPH ARMAND
IPC: A61P3/06
Filed: 1991-10-02
Granted: 2003-06-10
Abstract: The present invention is directed to compounds of general formula (I), methods for using the compounds of formula (I), pharmaceutical compositions thereof, and processes for preparing the compounds. Formula (I) wherein X is oxygen or sulfur; wherein R is hydrogen, a straight or branched alkyl group having from 1 to 8 carbon atoms or benzyl; wherein each of R1 and R2 is phenyl, substituted phenyl, naphthyl, substituted naphthyl, an aralkyl group, a 5- or 6-membered monocyclic or fused bi-cyclic heterocyclic group, or a hydrocarbon chain having from 1 to 20 carbon atoms and from 1 to 3 double bonds.
Patent CA-2096230-C (CA)
Title: Characterization of platelet aggregation disorders
Inventor: GINSBERG MARK H
IPC: G01N33/49
Filed: 1991-11-15
Granted: 2003-05-27
Abstract: Methods are described for characterizing platelet aggregation defects. The defects are characterized as activation, ligand binding, or post-occupancy defects. In one embodiment of the invention a Cam variant of Glanzmann's thrombastenia is charac-terized as having a ligand binding defect. In another embodiment, a patient with myelofibrosis is identified as having an activa-tion defect. Rapid analysis are afforded using fluorescence-activated flow cytometry. Also, diagnostic kits are described which comprise antibodies suitable for characterizing the above defects.