baber/WOPTO huggingface dataset:
Patent CA-2000245-C (CA)
Title: Multiprocessor system using communication register having processor-associated storage locations
Inventor: HAYASHI HIDEO
IPC: G06F15/167
Filed: 1989-10-06
Granted: 1996-07-16
Abstract: In a multiprocessor system, a communication register is partitioned into groups of word storage locations and one of the groups is further partitioned into subgroups associated respectively with the processors.  An access controller accesses any groups of the communication register when a system program is being processed and accesses one of the subgroups when a user program is being processed.  A write controller is responsive to a test & set instruction of first occurrence from a common bus for assembling a lock word with a data word, a control field and a counter field containing a variable count.  The control field of the lock word is set to a first binary state when it is assembled and reset to a second binary state when deassembled.  In response to a load instruction from the common bus, either the data word from the bus or lock word is stored into the specified storage area of a communication register.  A read controller reads contents of an addressed location of the communication register onto the common bus in response to a save instruction.  Test & set instruction of a subsequent occurrence causes the variable count in the stored lock word to be decremented as long as the control field remains set to the first binary state.  When the count reduces to zero, a signal is applied to the common bus indicating the occurrence of a dead lock.
Patent CA-2002852-C (CA)
Title: Toilet sealing ring
Inventor: HANDAL VICTOR H
IPC: E03D11/00
Filed: 1989-11-14
Granted: 1992-06-09
Abstract: Abstract A toilet sealing ring provides a connection and seal for a toilet and its associated drain pipe utilizing a self-aligning annular elastomeric gasket with a cylindrical upper wall which slides inside an inner ring and a lower beveled surface which mates an outer ring inner beveled surface, and, when compressed between the inner ring and the outer ring, forms a moisture tight seal between the toilet, the toilet sealing ring, and the drain pipe.
Patent CA-2010063-C (CA)
Title: Universal biological indicator system
Inventor: KRALOVIC RAYMOND C
IPC: C12M1/34
Filed: 1990-02-14
Granted: 1995-09-12
Abstract: A cylindrical,  transparent  capsule  (10)  is  less  than half filled with a liquid culture medium (12).   An open end of the capsule is closed by supporting annulus  (24)  and a vent tube  (28)  having a vent aperture  (30)  at a free end thereof.  The  vent  aperture  is  disposed  at  a  volumetric center of  the  capsule  such  that  an  upper  surface  of  the liquid culture medium is disposed below the vent aperture in any orientation of the capsule.  A heat labile membrane (32) which becomes porous in the presence of steam seals the vent passage but provides a pressure escape from the capsule at steam sterilizinq temperatures. A disk inoculated with microorganisms is supported by the annular support.  A cap (40) is slidably movable between a first position in which apertures (42) provide a liquid flow path between the inoculated disk and the exterior and a second position in which a severing ring (46) severs the support annulus bringing the inoculated disk and the culture medium into contact.
Patent CA-2010398-C (CA)
Title: Method to improve directional survey accuracy
Inventor: COLES MARK
IPC: E21B47/022
Filed: 1990-02-20
Granted: 1993-10-12
Abstract: METHOD TO IMPROVE DIRECTIONAL SURVEY ACCURACY                     Abstract A method is proposed for better determining the azimuth and inclination of a borehole in which a priori information regarding the magnitude of the earth's gravitational field strength, it magnetic field strength and direction are utilized to constrain the measured components of the earth's gravitational and magnetic field vectors.  The constrained fit method adjusts the accelerometer and the magnetometer tri-axis measurement to optimize agreement between the measure data and the a priori magnetic and gravity field strengths and the magnetic dip angle.  The adjustment that is selected is that which produces the least increase in the statistical measure X2.
Patent CA-2010688-C (CA)
Title: Fast response picture-in-picture circuitry
Inventor: DUFFIELD DAVID JAY
IPC: H04N5/45
Filed: 1990-02-22
Granted: 1999-06-01
Abstract: A channel sampler system, including a television signal tuner, displays an array of inset pictures on a display screen.  Each inset picture is a still video picture (i.e, freeze-frame) selected by tuning each of the channels in a scan list of channels.  A feedback signal is used to determine the point at which the channel is tuned, at which point a frame of video is received and stored, so that the television program sample freeze-frame image is taken from each active channel without undue delay.
Patent CA-2011053-C (CA)
Inventor: TAKAO KENJI
IPC: C23C22/83
Filed: 1990-02-27
Granted: 1997-12-02
Abstract: The improved corrosion-resistant steel plate with an organic coating comprises a steel plate having a zinc or zinc alloy plate layer which is overlaid with a chromate film which in turn is coated with an organic resin paint film. The organic resin coat comprises an epoxy resin having a dialkanolamine incorporated into its bisphenol A skeleton, an amino resin, and silica.  The dialkanolamine combines with the amino resin to provide satisfactory curability at low temperatures, at the same time, it combines with the silica to provide a satisfactory film reinforcing effect.  The organic coat formed of this composition can be effectively cured at low temperatures and yet it will neither dissolve nor soften upon swelling under the action of the alkali that is generated during cationic electrodeposition at the interface between the electrodeposited film and the organic coat.  Thus, the organic coat has good paint adhesion, high corrosion resistance, as well as good workability and weldability and makes the steel plate suitable for use as an automotive part after painting.  If the proportion of trivalent chromium in the chromate film and the amounts of zinc oxide and silica sol to be incorporated as additives are properly adjusted, the organic coating will exhibit satisfactory resistance to chromium dissolution and hence its paint adhesion and corrosion resistance are further improved to make the steel plate more suitable for use as an automotive part after painting.
Patent CA-2013536-C (CA)
Title: Recovery of dissolved gold by sodium borohydride reduction
Inventor: HAQUE KAZI E
IPC: C22B11/00
Filed: 1990-03-30
Granted: 1996-12-03
Abstract: A process is disclosed for the direct recovery of gold from cyanide leach liquor, thiourea leach liquor or Bio-D leach liquor. The process comprises reduction precipitation of the gold from solution by the addition of stabilized alkali metal borohydride, preferably sodium, potassium, lithium or ammonium borohydride, at ambient temperature and pressure. High purity gold is obtained by heating the reduced precipitate to about 1200°C. The barren solution is in a condition such that it can be recycled to the upstream process.
Patent CA-2014490-C (CA)
Title: Diaminoethylene compounds
Inventor: MINAMIDA ISAO
IPC: C07D213/61
Filed: 1990-04-12
Granted: 1999-12-07
Abstract: Diaminoethylene derivatives of the formula:   (see formula I) wherein R1 is a heterocyclic group which may be substituted, R2, R3 and R4 are a hydrogen atom or a hydrocarbon group which may be substituted or R3 and R4 are combined to form a cyclic amino group together with the adjacent nitrogen atom; R5 is hydrogen atom or a hydrocarbon group or heterocyclic group which may be substituted, X is an electron attractive group; Y is a hydroxyl or substituted hydroxyl group, amino or substituted amino group or mercapto or substituted mercapto group; n is d or 1; or their salts, which are useful as insecticides.
Patent CA-2025486-C (CA)
Title: Door latch with block-out type child safety feature
Inventor: PORTELLI ALFRED L
IPC: E05B65/32
Filed: 1990-09-17
Granted: 1995-09-19
Abstract: This invention relates generally to a child safety vehicle door lock with a blocking arrangement for selectively blocking operation of an operating handle to prevent release of the door latch by an unauthorized person such as a child passenger.  The blocking arrangement includes a blocking lever of plastic material pivotally mounted of the latch frame for manual movement between blocking and non-blocking positions.  The blocking lever and frame have detent elements for releasably locating the blocking lever in each of its positions.  The blocking lever includes a portion, which when in the blocking position, is engaged on one side by the frame and engaged on the other side by a portion of the operating lever.
Patent CA-2036082-C (CA)
Title: Fluid dispensing valve with prestressed flexible membrane closure means
Inventor: NILSSON BILLY
IPC: B05B11/00
Filed: 1991-02-11
Granted: 1995-12-19
Abstract: A valve  for dispensing a preferably viscous fluid is adapted in  connection  with  the  dispensing  operation to open under  the action of a positive pressure in the fluid, produced e.g. by means of a pump (1),  and to  close by it-self when  the positive  pressure, and  thus the dispensing operation, has ceased. The  valve  (2)  has  a  channel (9) with an  inlet and  an outlet end (9a; 9b) and an axial di-rection of fluid flow (10). The  channel (9)  is defined by a body  portion (11)  of rigid material and a cover portion (12) of flexible material. The body portion (11)  is formed with a  groove (13) of substantially arcuate cross-section. The edges of the  cover portion  (12) extending  in the di-rection of  flow (10)  are sealingly  connected to the body portion (11). Towards the outlet end  (9b), the  cover por-tion conforms  to the  shape of  the groove (13). The cover portion (12) is prestressed to sealingly engage the wall of the groove (13) with a certain engagement pressure.
Patent CA-2038416-C (CA)
Title: Ascorbic acid derivatives
Inventor: MARCINIAK GILBERT
IPC: A61K31/34
Filed: 1991-03-15
Granted: 2003-03-11
Abstract: This invention relates to derivatives of certain 3,4-dihydroxy-2,5-dihydrofuran-5-ones, to the intermediates and processes useful for their preparation, to their free-radical scavenger and cellular protective properties, and to their end-use application as therapeutic agents.
Patent CA-2045181-C (CA)
Title: Thermal process for stretch-orientation of polyaniline films and fibers
Inventor: EPSTEIN ARTHUR J
IPC: B29C55/02
Filed: 1990-02-01
Granted: 1995-09-05
Abstract: A process to produce oriented, crystalline polyaniline films using simultaneous heat treatment and stressing of polyaniline films. Films stressed while being held at elevated temperatures (T > 110°C), showed anisotropic X-ray, IR and visible optical re-sponse.
Patent CA-2045756-C (CA)
Title: Combined queue for invalidates and return data in multiprocessor system
Inventor: BOUCHARD GREGG
IPC: G06F12/08
Filed: 1991-06-26
Granted: 1996-08-20
Abstract: A pipelined CPU executing instructions of variable length, and referencing memory using various data widths. Macroinstruction pipelining is employed (instead of microinstruction pipelining), with queueing between units of the CPU to allow flexibility in instruction execution times.  A wide bandwidth is available for memory access; fetching 64-bit data blocks on each cycle.  A hierarchical cache arrangement has an improved method of cache set selection, increasing the likelihood of a cache hit.  A writeback cache is used (instead of writethrough) and writeback is allowed to proceed even though other accesses are suppressed due to queues being full.  A branch prediction method employs a branch history table which records the taken vs. not-taken history of branch opcodes recently used, and uses an empirical algorithm to predict which way the next occurrence of this branch will go, based upon the history table.  A floating point processor function is integrated on-chip, with enhanced speed due to a bypass technique; a trial mini-rounding is done on low-order bits of the result, and if correct, the last stage of the floating point processor can be bypassed, saving one cycle of latency.  For CAL type instructions, a method for determining which registers need to be saved is executed in a minimum number of cycles, examining groups of register mask bits at one time.  Internal processor registers are accessed with short (byte width) addresses instead of full physical addresses as used for memory and I/O references, but off-chip processor registers are memory-mapped and accessed by the same busses using the same controls as the memory and I/O.  If a non-recoverable error detected by ECC circuits in the cache, an error transition mode is entered wherein the cache operates under limited access rules, allowing a maximum of access by the system for data blocks owned by the cache, but yet minimizing changes to the cache data so that diagnostics may be run. Separate queues are provided for the return data from memory and cache invalidates, yet the order or bus transactions is maintained by a pointer arrangement.  The bus protocol used by the CPU to communicate with the system bus is of the pended type, with transactions on the bus identified by an ID field specifying the originator, and arbitration for bus grant goes one simultaneously with address/data transactions on the bus.
Patent CA-2051327-C (CA)
Inventor: CHUMAK FEDOR A
IPC: B03D1/14
Filed: 1991-09-13
Granted: 1998-12-08
Abstract: The automatic control device comprises  a channel used to measure the level and density of pulp in a chamber of a flotation machine, in which two bubbling tubes communicate with  a  differential  pressure  transducer  connected  to  the input of a frother flow control channel and to the input of a correction unit whose other input is connected to a pressure transducer communicating with one of the bubbling tubes.  The bubbling tubes  are  installed in hydrostatic  tubes  located outside the chamber and communicating therewith at different levels  relative  to  the  pulp  level.    The  output  of  the correction  unit  is  connected  to  the  input  of  a  circuit designed to control the flow rate of water and frother in a pulp  level  stabilizing  channel  and  having  its  output connected to an actuator valve of a pipeline feeding water and  frother.    A  water  and  frother  flow  transducer  is connected to the input of a circuit designed to control the gangue discharge rate in the pulp level stabilizing channel and having its output connected to the drive of an actuator valve of a branch pipe used to discharge gangue.
Patent CA-2053658-C (CA)
Title: Intake silencer of the variable type for use in motor vehicle
Inventor: LEE KEEHO
IPC: F02M35/12
Filed: 1991-10-17
Granted: 1997-09-30
Abstract: A motor vehicle intake silencer having a variable length resonance chamber, said length being rapidly changeable in response to engine speed by varying the effective length of said resonance chamber. The present invention for reducing noise comprises a signal processing part, a signal comparing part and a valve driving part. In the signal processing part, a RPM sensor modulates a waveform obtained by detecting the revolution number of the engine and a F/V converter changes it thereafter emitting a signal to the signal comparing part. In the signal comparing part, a plurality of comparators emit the opened and closed signal to a valve driver by comparing a output signal emitted from the signal processing part with a basic signal. In the valve driving part, when the corresponding valve driver turns on or off by virtue of the signal emitted from the corresponding comparator, a corresponding actuator opens or closes the corresponding valve dividing the inside of the side branch. Thus, it can rapidly change its capacity according to the change of the revolution number of the engine and also has the simple structure and the small size.
Patent CA-2057549-C (CA)
Title: Coating composition for inhibiting corrosion of metal substrates
Inventor: SEIBEL LAWRENCE P
IPC: C08K5/47
Filed: 1991-12-12
Granted: 1997-03-04
Abstract: A coating composition that inhibits corrosion of metal substrates, a method of inhibits corrosion of a metal substrate with a corrosion-inhibiting coating composition, and a metal article that resists corrosion are disclosed.          The corrosion-inhibiting coating composition comprises: (a) a high molecular weight epoxy resin; (b) a phenolic resinl (c) an organic corrosion inhibitor having the general structural formula   , wherein each R is selected, independently, from the group consisting of hydrogen, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl, cycloalkyl, phenyl, alkylphenyl, phenylalkyl, halo, cyano, nitro, carboxyl, carboxyalkyl, hydroxy, amino and carbamoyl, and wherein R1, R2, R3 and R4 are selected, independently, from the group consisting of hydrogen, alkyl, hydroxyalkyl, haloalkyl, alkoxyalkyl, carboxyalkyl, carboxyl, phenyl, and phenylalkyl, and wherein at least one of the R1, R2, R3 and R4 groups is a carboxyl group; and (d) a suitable nonaqueous carrier.
Patent CA-2058136-C (CA)
Title: Heat shielded exhaust system component
Inventor: KELLER MARTIN T
IPC: F01N13/14
Filed: 1991-12-19
Granted: 1995-07-18
Abstract: An exhaust muffler and heat shield assembly and a method for producing the assembly are provided.  The muffler includes a pair of stamp formed external shells.  At least one external shell is stamped to include a plurality of tabs extending outwardly from the peripheral flange of the external shell.  The tabs preferably are disposed at locations that otherwise would have defined wastage to be trimmed from the stamp formed external shell.   The heat shield is configured to be mounted to the muffler by crimping the tabs.  In particular, peripheral regions of the heat shield may be engaged between the peripheral flange of the muffler and the crimped tabs.   Alternatively, the heat shield may include slots through which the tabs extend for mechanical engagement with the heat shield.
Patent CA-2069586-C (CA)
Title: Link rod of wiper for motor vehicle and method of manufacturing the same
Inventor: KANNO KAZUNOBU
IPC: F16C7/00
Filed: 1992-05-26
Granted: 1997-03-25
Abstract: A link rod of a wiper for a motor vehicle, comprises a cylindrical section, a pair of flat sections formed at opposite ends of the cylindrical section by crushing the opposite ends of the cylindrical section from above and below, and a pair of resinous coupling joints mounted on the respective flat sections.  A first hole having a large diameter and a second hole having a small diameter are respectively formed at outer and inner portions of each of the flat sections as viewed in a longitudinal direction of the cylindrical section.  A gap opens into an axially intermediate portion of a peripheral surface of the second hole so that the interior of the cylindrical section communicates with a mouth of the second hole through the gap.  Each of the coupling joints includes a joint portion that is disposed at the first hole and seals the second hole and the gap.
Patent CA-2071236-C (CA)
Inventor: HARTMANN JAMES R
IPC: B25F5/02
Filed: 1992-06-15
Granted: 1996-02-27
Abstract: An  improved  cordless  motor-driven  electric  hand tool that has an elongated body portion with a tool bit-receiving means at one end and a housing at the other   end   having   a   battery-receiving   chamber therein.   An elongated tool bit storage chamber is formed  in  the  housing  above  and/or  below  the battery-receiving  chamber  and  has  a  cover  that  is pivotally mounted for open and closed positions.  The housing is oval shaped to create a space above and/or below the battery-receiving chamber in which the tool bit storage chamber is formed.
Patent CA-2082459-C (CA)
Title: Impact pad for a continuous caster tundish
Inventor: SCHMIDT MANFRED
IPC: B22D41/00
Filed: 1992-11-09
Granted: 1995-10-10
Abstract: An impact pad for eliminating surface turbulence in a continuous caster tundish, the impact pad having a base for receiving an incoming ladle stream, and one or more sidewalls extending in an upward direction along the periphery of the base. Each upward extending sidewall includes an inner surface having an undercut portion facing the incoming ladle stream. And, each undercut portion extends along the length of the inner surface, and comprises a shaped surface for receiving and reversing the direction of a fluid flow generated by the incoming ladle stream.
Patent CA-2085877-C (CA)
Title: Production of ethylene oxide
Inventor: JENNINGS JAMES ROBERT
IPC: C07D301/32
Filed: 1991-06-18
Granted: 2002-09-24
Abstract: A gas stream from a reaction in which ethylene oxide is produced by reacting ethylene with oxygen which gas stream com-prises oxides of nitrogen and steam the gas stream is contacted with an aqueous alkaline quench solution and ethylene oxide is then recovered from the gas stream. A substantial amount of oxides of nitrogen is removed from the gas stream during the treat-ment with, the quench solution.
Patent CA-2090063-C (CA)
Title: Surfactant composition and method of making same
Inventor: KAISER RICHARD J
IPC: C07D265/30
Filed: 1993-02-22
Granted: 2003-05-27
Abstract: The reaction product of: (a) a compound of the formula:   (see formula I) wherein X is a member selected from the group consisting of NH, O and S; R1 and R2 are independently a straight or branched, saturated or unsaturated non-aromatic hydrocarbon of four to eighteen carbon atoms; m is 1 or 2 ; arid n is 0, 1 or 2; and (b) a compound selected from the group consisting of primary, secondary, tertiary and higher amines, which are liquid at room temperature.      The reaction product of the present invention has excellent surfactant properties, and is suitable for use in coloring compositions to improve the fugitivity from skin and clothing. The reaction product is also useful as a cleansing agent.
Patent CA-2091088-C (CA)
Title: Scheduled communication network
Inventor: DI GIULIO PETER C
IPC: G05B19/418
Filed: 1993-03-05
Granted: 1999-07-06
Abstract: A cost-effective motion control system communication architecture is provided that supports a centralized control node, distributed control nodes, and smart I/O peripheral control nodes.  Networks designed using this architecture, which employs a serial bus, may be readily modified or expanded.  The architecture supports both real-time highly periodic communications and event-driven peer-to-peer communications.
Patent CA-2092007-C (CA)
Title: Door edge construction
Inventor: WOODRUFF ALAN H
IPC: E06B7/23
Filed: 1993-03-19
Granted: 1996-03-19
Abstract: A door edge construction includes a rectangular door having an elongated side extrusion attached to and extending along one edge thereof.  A side cap having a C-shaped cross-section is fitted over the side member and over the edges of the door so as to hide them from view.  A U-shaped floor sweep is mounted to the bottom edge of the door, and the end of the floor sweep is covered by the lower end of the side cap adjacent the bottom of the door.
Patent CA-2093667-C (CA)
Title: Mouse monoclonal antibodies and uses thereof
Inventor: PASTAN IRA H
IPC: C07K16/30
Filed: 1991-10-09
Granted: 2000-02-15
Abstract: The subject invention relates to monoclonal antibodies and uses thereof. In particular, the invention relates to three monoclonal antibodies, referred to as B1, B3, and B5, which are useful in the treatment and diagnosis of many forms of cancer.
Patent CA-2094101-C (CA)
Inventor: OKAWA MITSUHISA
IPC: A44B18/00
Filed: 1993-04-15
Granted: 1996-02-27
Abstract: A surface fastener having a woven tape, wherein said tape includes a number of longitudinal locking regions and a number of longitudinal mesh regions alternately arranged across the width, each of said locking region being woven of weft threads of monofilaments and first and second warp threads, said second warp threads forming male or female engaging elements, each of said mesh regions including only said weft threads, each said locking region also in-cluding fixing threads extending along opposite longi-tudinal edges thereof.