baber/WOPTO huggingface dataset:
Patent CA-2032367-C (CA)
Title: Exclusive memory region control system utilizing software and hardware locks
Inventor: SEKIZUKA HIROYUKI
IPC: G06F9/46
Filed: 1990-12-14
Granted: 1996-12-31
Abstract: An exclusive memory region control system in a computer system has a CPU and a main memory including an exclusive memory region. The exclusive memory region has a small control area provided in the exclusive memory region in the main memory and including data designating whether a software lock is applied to the exclusive memory region. The system comprises a hardware lock control unit for performing a hardware lock of said small control area by comparing an access address with a lock address and a software lock control unit for reading the content of said small control area without a hardware lock being applied to said small control area and for performing the software lock of the exclusive memory region by using register information in the CPU.
Patent CA-2032848-C (CA)
Title: Automatic calibrating apparatus and method for second-order gradient microphone
Inventor: MILLER ROBERT R II
IPC: H04R3/00
Filed: 1990-12-20
Granted: 1994-03-29
Abstract: Abstract of the Disclosure An automatic calibration system for a second-order gradient microphone is provided to ensure optimum sensitivity balance between a pair of first-order gradient microphones mounted in a housing and forming the second-order gradient microphone. Automatic calibration is achieved through use of a transducer also mounted in the housing and located equidistanct acoustically between the two first-order gradient microphones. Under the control of a computer, the transducer is directed to generated sound pressure which is used to calibrate the gain of amplifiers respectively associated with each one of the first-order gradient microphones for obtaining maximum directional sensivity for a second-order directional response pattern. Such a system not only allows the use of inexpensive, non-matched microphones, but also obviates the need for factory calibration. Since the system is configurable to optimize itself automatically prior to use, calibration may be maintained regardless of aging, environmental stresses and parts replacement.
Patent CA-2033485-C (CA)
Title: Gradual heat reduction for a clothes dryer
Inventor: JOSLIN DAN F
IPC: D06F58/38
Filed: 1990-12-31
Granted: 1996-08-27
Abstract: A method and apparatus is disclosed for the gradual reduction of heat in a clothes dryer.  The heater runs until a high limit is reached.  The heater is then turned off and the high limit reduced by a factor.  The heater is turned on when a low limit is reached and the low limit is reduced by a factor.  This continues until the high and low limits reach minimum values.  The values of all these temperatures may be varied according to the fabric being dried.
Patent CA-2039189-C (CA)
Title: Method and system for planning and dynamically managing flow processes
Inventor: SITARSKI EDWARD MICHAEL
IPC: G06Q10/06
Filed: 1991-03-27
Granted: 1998-09-15
Abstract: A method for prospective planning and dynamic management of a flow processes comprising a plurality of interrelated and interdependant processes, resources and commodity flows using a computer system. The method includes providing a database containing information about the flow process and graphically displaying both the problem and the solution spatially and/or temporally. Indicia can be made to appear on the display to provide visual identification of symbols as well information about the solution, capacity, minimum levels, flows and variances. In addition, access to the data base can be made available either to update the display to reflect current information or to perform "what-if" scenarios. Access to the database is through objects displayed and displayed. The system also has the capability to communicate portions or all of the plan to other modules and to receive data from other modules.
Patent CA-2039509-C (CA)
Title: Heat-resistant metal monolith and manufacturing method therefor
Inventor: HARADA TAKASHI
IPC: F01N3/20
Filed: 1991-04-02
Granted: 1999-01-19
Abstract: A heat-resistance   metallic   monolith,   which   is manufactured by forming metal powders into a shape of a honeycomb structure and by sintering the shape, has a heat-resistant metal oxide  coated on the surface of the cell walls and that of the pores thereof.  Such a heat-resistant metallic monolith is manufactured by mixing metal powders, an  organic  binder  and  water  to  prepare  a  mixture,  by forming the mixture into a shape of a desired honeycomb configuration,  by  sintering the  shape  in a non-oxidizing atmosphere at a temperature between 1000 and 1450°C and then by coating a heat-resistant metal oxide on a surface of the cell walls and that of the pores of the obtained sintered body.
Patent CA-2043558-C (CA)
Title: Electrical circuit breaker with rotating arc and self-extinguishing expansion
Inventor: KERSUSAN JEAN-PIERRE
IPC: H01H33/18
Filed: 1991-05-30
Granted: 2000-08-29
Abstract: A three-phase circuit breaker with self-extinguishing expansion and rotating arc comprises an arc extinguishing chamber per pole housing a pair of stationary and movable contacts, a coil to rotate -the arc, and an exhaust channel in at least one contact to provide on opening a communication and gas outflow between the extinguishing chamber and the expansion volume of an enclosure filled with SF6. The extinguishing chamber has a square or rectangular cross-section to resorb the gas plug after braking of the gas rotation movement, and improve stirring of the gas in the extinguishing chamber.
Patent CA-2049489-C (CA)
Title: Herbicidal thioparaconic acid derivatives
Inventor: WELTER THOMAS ROBERT
IPC: C07D409/06
Filed: 1991-08-19
Granted: 1996-12-10
Abstract: A method of controlling plant growth is provided comprising applying to the plants or to a habitat thereof a herbicidally effective amount of a compound having the structure:        wherein R1 is carboxy, cyano, ester,   or amido   wherein R is a straight-chained alkyl group or a branched-chained alkyl group having 1 to 8 carbon atoms, R3 and R4 independently of one another represent hydrogen, an alkyl having 1 to 8 carbon atoms, a cycloalkyl having 5 to 6 carbon atoms, or a heterocyclyl having 5 to 6 carbon and hetero atoms with said hetero atoms selected from sulfur, nitrogen and oxygen, or, R3 and R4 taken together with the nitrogen atom of the amido group represent pyrrolidinyl, piperidinyl or piperazinyl.  Also, novel compounds having the above structure are provided.
Patent CA-2050780-C (CA)
Title: Water-in-oil dispersion
Inventor: NORTON IAN TIMOTHY
IPC: A23D7/015
Filed: 1991-09-06
Granted: 1996-10-22
Abstract: The present invention is concerned with a plastic dispersion containing from 5-65 wt.% of a continuous fat phase and from 95-35 wt.% of a gelling polysaccharide containing dispersed aqueous phase, wherein the gelling polysaccharide is selected from the group consisting of agar, pectin and mixtures thereof and present in a concentration exceeding the critical concentration and which aqueous phase contains further 0.004 to 10.0 wt.% of protein.            We have found that the present dispersion displays essentially the same in-mouth break down behaviour as a gelatin based dispersion.
Patent CA-2063942-C (CA)
Title: Integral suction system
Inventor: DREIMAN NELIK I
IPC: F04B39/12
Filed: 1992-03-25
Granted: 1996-09-10
Abstract: A gas flow system for a hermetic compressor is described which reduces the transfer of heat from the cylinder head and the hot discharge gases along with other hot internal compressor parts, wherein a separately formed suction tube is made from a low thermal conductivity plastic and is adapted to be received in a separately formed cylinder head.  The cylinder head includes discharge chambers formed integrally therein but is adapted to receive the suction tube, while the suction tube includes a conduit defining a suction plenum having a suction inlet and adjutages extending transverse to the conduit which extend to the valve plate and communicate with openings in the cylinder head in order that the refrigerant flowing therein bypass the hot cylinder head and flows directly into the cylinder.  The gas flow system also provides cooling for the motor in which a part of the refrigerant which flows into the suction tube is directed through the motor. Grooves formed in the cylinder head walls accommodate O-rings that allow a press fit of the suction tube onto the cylinder head.
Patent CA-2065433-C (CA)
Title: Synthesis of aryl alkanediols having high optical purity
Inventor: BOAZ NEIL WARREN
IPC: C12P7/42
Filed: 1990-09-17
Granted: 1997-04-29
Abstract: R- and S-1-Phenyl-1,3-propanediol, each of high optical purity, were prepared by a chemoenzymatic sequence starting with ethyl benzoylacetate. The first step was a catalytic hydrogenation of the .beta.-ketoester conducted at room temperature. The en-zymatic hydrolysis of the resulting hydroxyester proceeded in a facile manner using a commercial preparation of the lipase from Pseudomonas fluorescens. The enzymatic hydrolysis proceeded at a moderate rate (350 mg lipase/0.10 mol of racemic ester re-quired a 20-hour reaction time with an enantiomeric rate ratio (E value) of 36). The hydrolysis was run to 45-50 % conversion to afford isolated S-3-phenyl-3-hydroxypropionic acid of 85-90 % ee after separation from the residual ester (aqueous base extrac-tion). The optical purity of the hydroxy acid was determined by conversion to the methyl ester (CH3I, KHCO3, acetone) and de-rivatization with S-MTPA-CI, and ?H NMR analysis. A single recrystallization of the isolated acid afforded optically pure (>98 % ee) S-3-phenyl-3-hydroxypropionic acid in an overall 36% yield from the racemic ester. The acid was reduced with bo-rane in THF to afford optically pure S-diol in 97 % yield after crystallization. The overall sequence proceeded in 34 % total yield from racemic ester with an additional 45-55 % recovered as the antipodal ester. This antipodal ester is obtained in 85-95 % ee, and the corresponding hydroxy-acid was readily obtained (NaOH, CH3OH/H2O) and recrystallized to optical purity. Reduction then afforded R-1-phenyl-1,3-propanediol in 30 % to overall yield from racemic ester.
Patent CA-2069243-C (CA)
Title: Logarithmic intermediate-frequency amplifier
Inventor: KIMURA KATSUJI
IPC: H03G7/00
Filed: 1992-05-22
Granted: 1997-08-19
Abstract: A  C-MOS  logarithmic  IF  amplifier is  provided which comprises  a plurality of IF amplifiers cascade-connected to each other through a first coupling capacitor, a  plurality of rectifiers each receiving a signal from the corresponding one of the  plurality of  IF  amplifiers  through  a  second coupling  capacitor  different  in  capacity  from the first coupling capacitor,  and an adder  for  adding  the  output signals  of these  rectifiers to each other.  The first  and second coupling capacitors are preferable to be connected in series  to cascade-connect those IF amplifiers therethrough.          Each of the rectifiers is  applied with an output signal of the  corresponding   one  of  the  IF  amplifier  from   the connection  point of  the  corresponding  first  and  second coupling  capacitors.   By  setting  the  first  and  second capacitors  at optimum capacitive values,  respectively, the IF amplifiers each makes it possible to cut off the low band side of its frequency band  and the rectifiers each makes it possible to expand its frequency band to the low band side.
Patent CA-2071164-C (CA)
Title: Fiber optic backlighting panel and zig-zag process for making same
Inventor: MYERS J MICHAEL
IPC: G02B6/08
Filed: 1992-06-12
Granted: 2000-10-24
Abstract: An improved fiber optic backlighting panel provides uniform and increased background illumination in devices, such as rubber keypads, membrane switches, liquid crystal displays, rigid-panels or the like. The fiber optic panel comprises a light source and a layer of optical fibers arranged adjacent each other, which transmit light to different locations throughout the device, thereby providing efficient background illumination relative to the amount of light beamed in.      The optical fibers are selectively terminated at these locations by forming a series of angular cuts through the layer of optical fibers with a laser, according to a predetermined geometric zig-zag or sawtooth pattern stored in a computer memory. The zig-zag pattern extends across the entire length and width of the panel such that each optical fiber is cut only once to provide increased and consistent illumination throughout the device. In one specific embodiment, for application in liquid crystal displays, a layer of foam is used to diffuse the light to provide uniform illumination.
Patent CA-2076367-C (CA)
Inventor: O'DONNELL HUGH W
IPC: F16L1/20
Filed: 1991-02-11
Granted: 1998-12-08
Abstract: An apparatus and method for underwater aligning and connecting of two pipes used in directional drilling and particularly trenchless beach crossings. An alignment cable is connected between the ends of the two pipes and is tensioned to bring them into axial alignment. A rigid supporting platform is positioned on the sea floor. Securing clamps are mounted on the platform to align the two pipes. To thread the pipes, one pipe rotates about the joint axis.
Patent CA-2083802-C (CA)
Title: Sensor to measure crude-in-water percentage
Inventor: CHANG VICTOR
IPC: G01N27/22
Filed: 1992-11-25
Granted: 1997-12-16
Abstract: The present invention relates to an apparatus and a method for determining the water content of an oil-in-water emulsion.  The apparatus includes a first sensor for measuring the real part of specific admittance of the emulsion, a second sensor which acts as a temperature compensation device and electronic circuitry for producing a signal representative of the water content of the emulsion.  The method for determining the water content comprises measuring the real part of specific admittance of an oil-in-water emulsion and providing a signal representative thereof, providing a reference signal indicative of the emulsion temperature, adjusting the measured real part of specific admittance signal with the reference signal and converting the adjusted signal into a current signal representative of the percentage water content of the emulsion.
Patent CA-2084299-C (CA)
Title: Valve porting for rotating barrel ram pump
Inventor: HORE DONALD G
IPC: F04B1/20
Filed: 1991-06-04
Granted: 2003-02-04
Abstract: A positive displacement pump for slurry incorporating particulate solids in suspension to provide an initial inlet port opening clearance corresponding to the exposed area of overlap between the port and each corresponding cylinder opening sufficient to permit substantially uninterrupted passage of particulate solids at the commencement of each suction cycle, the cylinder openings and following the initial overlap the total cross-sectional flow area exposed to each of the ports is generally constant irrespective of the rotational position of the barrel within the housing such that a constant volummetric flow rate of the driving fluid tends to effect a corresponding substantially constant volummetric flow rate of the fluid to be pumped.
Patent CA-2088125-C (CA)
Title: Food modifier and process for making same
Inventor: ANDERSON WENDY ANN
IPC: A23G1/56
Filed: 1993-01-26
Granted: 2002-12-10
Abstract: Fat (cocoa butter) in a chocolate chip is reduced to below about 10% by using an aqueous sugar paste containing microparticles of cocoa dispersed in the paste. The colloid-like cocoa paste has improved food modifying properties of intense chocolate flavor similar to "ranched" chocolate, fat-like mouthfeel, thickener, viscosity control and stability.      The hydrated microparticles of cocoa in the paste have a particle size of about 0.1 to about 20 microns, preferably about 0.1 to about 10 microns, and an average mean particle size of about 2 to about 7 microns. The hydrated microparticles of cocoa are dispersed uniformly throughout the aqueous sugar paste. The paste has an Aw (water activity) of about 0.80 to about 0.90.
Patent CA-2090861-C (CA)
Title: Basic aluminum and aluminum/zirconium antiperspirants and method of making the same
Inventor: PAREKH JAWAHAR C
IPC: C01F7/57
Filed: 1991-08-19
Granted: 2002-06-25
Abstract: Basic aluminum halides and nitrates having enhanced antiperspirant efficacy are produced by reacting (a) aluminum pow-der, (b) an aluminum halide or nitrate solution and (c) water at a temperature greater than about 85 °C. This reaction is main-tained until reaction products having an Al:anion ratio of about 1.2 to 1.8 and a solution solids concentration of about 30-40 wt.% on an anhydrous basis are obtained. The products are characterized as having a Size Exclusion Chromatography Test Band hav-ing a relative retention time corresponding to Band II of a Standard Basic Aluminum Chloride Size Exclusion Chromatogram and a Band II percent aluminum value of at least about 50 % and a Band III  percent aluminum value of less than 20 %.
Patent CA-2099793-C (CA)
Title: Automotive steering wheel anti-theft device
Inventor: TOBIAS MARC WEBER
IPC: B60R25/02
Filed: 1993-07-05
Granted: 2001-02-13
Abstract: A mechanical anti-theft device of the type applied to the steering wheel of an automotive vehicle which automatically ratchets to it's applied position without necessity of key lock actuation is provided with several security enhancing features which cumulatively prevent or make the device exceedingly difficult to unlock using conventional burglary tools or lock picking techniques. The features include configuring the ratchet teeth of the telescoping rod member in a way which minimizes any. attempt to deactivate the lock unless the key is used. In combination with the ratchet teeth configuration, the lock pawl mechanism is configured to include an arcuate, transversely extending apex edge line or surface which cooperates with or is sized to be coincident with the rod members circumference to prevent a wedge, shim or pick from being readily easily inserted between pawl and ratchet tooth to force a retraction of the pawl.
Patent CA-2102080-C (CA)
Inventor: KLEIJN WILLEM BASTIAAN
IPC: G10L19/12
Filed: 1993-10-29
Granted: 1998-07-28
Abstract: A generalized analysis-by-synthesis technique is disclosed. Illustratively, a section of an original signal containing a local maximum energy is identified. A plurality of segments of the original signal containing the local maximum energy are selected based on a plurality of time shifts. These segments are termed "trial original signals." Each trial original signal is compared to asynthesized signal from an adaptive codebook and a measure of similarity (e.g., a cross-correlation) between these signals is evaluated. A trial original signal for use in coding is determined based on one or more evaluated measures of similarity. Asignal reflecting a coded representation of the original signal is generated based on one or more determined trial original signals. The signal reflecting a coded representation of the original signal may be provided by an analysis-by-synthesis coder, such as a CELP coder.
Patent CA-2107634-C (CA)
Inventor: KIOKA MAMORU
IPC: C08F4/642
Filed: 1993-10-04
Granted: 1998-07-28
Abstract: Disclosed is a titanium catalyst component for ethylene polymerization obtained by contacting [A] a solid magnesium aluminum complex containing magnesium, halogen, aluminum and an alkoxy group and/or alcohol having at least 6 carbon atoms, with [B] a tetravalent titanium compound.          The solid magnesium aluminum complex [A] is obtained by contacting (a-1) a magnesium solution formed from a halogen-containing magnesium compound, an alcohol having at least 6 carbon atoms and a hydrocarbon solvent, with (a-2) an organoaluminum compound.  Also disclosed is a process for ethylene polymerization comprising polymerizing ethylene or copolymerizing ethylene with an .alpha.-olefin having 3 to 20 carbon atoms in the presence of a catalyst for ethylene polymerization comprising [I] the above-mentioned titanium catalyst component for ethylene polymerization and [II] an organoaluminum compound catalyst component.
Patent CA-2115658-C (CA)
Title: Procede pour la production d'un polymere reticule au moyen d'un compose .beta.-dicarbonyle
Inventor: BRADFORD CHRISTOPHER J
IPC: C08G12/40
Filed: 1992-07-29
Granted: 2000-05-09
Abstract: Dans un procédé de réticulation d'un polymère, la fonctionnalité beta-dicarbonyle est présente sous forme d'un diluent réactif et/ou d'un solvant réactif, et/ou d'une entité de réticulation. Le composé beta-difonctionnel réagit avec le formaldéhyde qui est libéré pendant la réaction de réticulation (ou bien qui est présent) de sorte que la libération du formaldéhyde soit moindre qu'elle ne le serait autrement. Le formaldéhyde qui réagit avec le composé beta-dicarbonyl est soit incorporé dans le réseau polymère réticulé, soit libéré sous la forme d'un produit de réaction qui n'est pas dangereux pour l'environnement tel que le formaldéhyde n'ayant pas réagi. Le procédé permet de réduire la libération du formaldéhyde lors de la réticulation à des niveaux qu'on ne peut pas obtenir autrement. De plus, le procédé permet la réduction de la quantité de solvant organique utilisé.
Patent CA-2115863-C (CA)
Title: Herbicidal compositions
Inventor: O'NEAL WILLIAM BEN
IPC: A01N37/18
Filed: 1994-02-17
Granted: 2005-02-15
Abstract: Co-application of dimethenamid with other herbicides provides improved herbicidal activity.
Patent CA-2118699-C (CA)
Inventor: KNIGHT JAN
IPC: G01N21/76
Filed: 1992-09-08
Granted: 2008-03-11
Abstract: An apparatus for monitoring the presence of toxic substances in liquids is disclosed. The monitoring system is based on the use of luminescence systems such as those produced by luminescent microorganisms. The apparatus comprises sampling means for obtaining a sample of the liquid, means for providing a continuous culture of organisms or cells for supplying luminescence reagents and detection means for detecting light emitted from the mixture.
Patent CA-2119389-C (CA)
Title: Quieted air compressor
Inventor: KIEFFER JOSEPH W
IPC: F04C18/00
Filed: 1994-03-18
Granted: 2001-09-04
Abstract: A silencer for the primary air intake port of an air compressor which includes (a) a housing defining a cylindrical chamber with an inlet orifice at one end and an outlet orifice at the other and (b) a baffle including (i) a substantially cylindrically shaped portion generally concentrically positioned within the chamber which divides the chamber into a central cylindrical compartment in fluid communication with the outlet orifice and an annular compartment in fluid communication with the inlet orifice, (ii) an opening through the cylindrical shaped portion of the baffle proximate the inlet orifice for providing fluid communication between the central cylindrical compartment and the annular compartment, and (iii) a wing extending generally radially from the cylindrically shaped portion of the baffle into contact with the housing sidewall between the inlet orifice and the opening forcing air flowing into the chamber from the inlet orifice to travel along substantially the entire circumference of the annular compartment before entering the central cylindrical compartment through the opening in the baffle.