baber/WOPTO huggingface dataset:
Patent CA-2089359-A1 (CA)
Title: Method for crystallizing alpha-l-aspartyl-l-phenylalanine methyl ester
Inventor: OKAJIMA KENGO
IPC: C07K5/075
Filed: 1992-07-20
Abstract: A method for crystallizing alpha-L-aspartyl-L-phenylalanine methyl ester (APM) from its solution by cooling. In this method, crystals of APM are precipitated by cooling a solution of APM through direct contact with ice. APM crystals precipitated according to this method are big, strong and excellent in filtering properties.
Patent CA-2095964-A1 (CA)
Title: Hall-effect sensor
Inventor: MOSSER VINCENT
IPC: H01L43/06
Filed: 1993-05-11
Abstract: Hall-effect sensor of the type with two-dimensional electron gas and comprising, on an insulating substrate (10), a quantum well structure (12), a carrier-yielding layer (20) adjacent to the quantum well structure (12), less than 250 angstroms thick and having a surface density of donors, when integrated through the whole thickness of the carrier-yielding layer, of less than 5 10<12>cm<-2>, an insulating disposal layer (22) deposited on the carrier-yielding layer, having a conduction band of energy greater than the Fermi energy of the sensor and greater than 200 angstroms thick. Application to the field of electrical counters and current sensors. <IMAGE>
Patent CA-2098270-A1 (CA)
Title: Procedure for the detection and identification of viral and subviral pathogens
Inventor: NUNO BARBOSA NOLASCO GUSTAVO
IPC: C12Q1/6804
Filed: 1993-06-11
Abstract: The present invention refers to a new process for the detection and identification of viral and subviral pathogens, which combines the immobilization of the pathogen by using antibodies attached to the surface of the wells of a microtitration plate, with the enzymatic amplification of fragments of the viral genome and the spectrophotometric quantification of the latter or their identification by electrophoretic techniques. A viral pathogen is considered to be any virus that replicates inside protoplasts, prokaryotic or eukaryotic cells, whether they are differentiated or not, and at the expense of an enzyme found in protoplasts or cells. While a subviral pathogen is defined as any viroid, virusoid, satellite virus or RNA viral satellite, which replicates inside vegetable cells, whether they are differentiated or not, or their protoplasts, and at the expense of an enzyme found in protoplasts or cells. Although the term "biological sample" is given to prokaryotic cells, protoplasts, differentiated or undifferentiated eukaryotic cells, mycelia, vegetable or animal tissues, vegetable or animal. organs, "in vitro" cultivation media of any of the preceding entities, vegetable or animal systems and vegetable or animal organisms, the same term is being used to describe any product of secretion, excretion or transformation of any of the preceding entities.
Patent CA-2098787-A1 (CA)
Title: Impact block assembly for percussion drilling apparatus
Inventor: FLETCHER GERALD L
IPC: E21B4/16
Filed: 1993-06-18
Abstract: Abstract of the Disclosure In a percussion drilling apparatus, an impact block assembly is provided for sequentially driving drill rods into a subterranean formation, the impact block assembly including an impact block member aligned with one or more rows of drill rods and a combustion operated piston is arranged above the impact block assembly for sequen-tially driving each of the impact members downwardly into engagement with the aligned drill rods.
Patent CA-2098911-A1 (CA)
Title: Photodegradable plastic composition
Inventor: CHAPMAN GRAHAM M
IPC: C08K3/00
Filed: 1991-12-20
Abstract: A thermoplastic composition is provided which is degradable under the action of sunlight and/or ultraviolet light. The thermoplastic composition comprises a thermoplastic polymer, a first transition metal compound which may be a complex, a second transition metal compound and an aromatic ketone. The thermoplastic polymer preferably comprises an olefin such as polyethylene, ethylene copolymers, polypropylene, polystyrene or polyurethane. The first transition metal compound preferably comprises an iron compound such as iron stearate. The second transition metal preferably comprises copper stearate and the aromatic ketone preferably comprises benzophenone.
Patent CA-2101826-A1 (CA)
Inventor: MATKOVICH VLADO I
IPC: A61M39/00
Filed: 1993-08-03
Abstract: A connector assembly includes first and second fittings and first and second membrane assemblies.      Each fitting defines a respective aperture. Each membrane assembly has a layer sealing the aperture and a removable contamination containment layer overlying a respective sealing layer. The first and second fittings may be resiliently coupled in biased opposition to urge positive contact between the first and second removable contamination containment layers and/or the first and second sealing layers. In one application, a connector assembly according to the invention may define a fluid communication path for handling a fluid without allowing the level of contaminants in the fluid to increase. A connector assembly according to the invention may be used to handle a biological fluid while maintaining the fluid free of viable contaminating microorganisms or preserving its sterility, for example.
Patent CA-2106564-A1 (CA)
Title: Dual chamber pacing system with dynamic physiological tracking and optimized synchronous pacing
Inventor: BEGEMANN MALCOLM J S
IPC: A61N1/368
Filed: 1993-01-29
Abstract: A dual chamber pacemaker system is provided having means for determining when sensed atrial signals have a physiological rate, and tracking only such sensed atrial signals as are found to have physiological rates. The pacemaker provides logic means for continuously determining a physiological rate as a function of sensed atrial rate, whereby physiological rate substantially tracks the rate of sensed physiological atrial signals. The pacemaker also determines dynamic decision rates which are coupled to follow the physiological rate. The decision rates comprise a dynamic pacing limit, which sets the pacing escape interval; a dynamic tracking limit, which sets the upper limit of the physiological range of rates which are tracked; and the dynamic Wenckebach limit, which defines the upper rate for a dynamic Wenckebach range. The pacemaker enables time out of an AV delay for synchronizing delivery of ventricular pacing pulses with respect to atrial heartbeats which occur within the range between the dynamic pacing limit and the dynamic tracking limit, i.e., the physiological range. Synchronized ventricular pacing pulses are delivered when both the sensed atrial signal and the scheduled synchronized ventricular signal have rates within the determined physiological range. The pacemaker substantially continuously determines atrial rate, sensing all atrial signals except for a short PVAB which limits atrial sensing only to the extent required to block far field R-waves.
Patent CA-2106572-A1 (CA)
Inventor: CHIN CHEN-WOO
IPC: B27K3/14
Filed: 1992-03-17
Abstract: The invention described is a wood preservative applicator or bandage for wooden structures such as wooden poles which wraps around the pole at ground level. The bandage comprises a inert matrix 2 which has a surface for contact with the wooden structure and has a plurality of reservoirs 3 formed therein. The reservoirs communicate with the surface of the matrix and contain a solid tablet of wood preservative chemical for supply to the matrix surface. The plurality of individual reservoirs are arranged on the flexible matrix to enable the matrix to be shaped to conform to the contour of the wooden structure. The bandage is also provided with a fastening means for securing the matrix in position on the wooden structure. The fastening means is a line of indentations formed above and below the plurality of individual reservoirs. The indentations form complementing male and female members in the matrix such that when the bandage is applied to a wooden structure, the male members of one end of the bandage co-operate with the overlapping female members at the other end of the bandage to secure the bandage to the wooden structure.
Patent CA-2106830-A1 (CA)
Title: Basic dyes based on amides of j-acid (1-hydroxy-6- aminonaphthalene-3-sulfonic acid) and amides of j-acid
Inventor: SCHLOESSER ULRIKE
IPC: C09B44/02
Filed: 1993-09-23
Abstract: Abstract of the Disclosure: There are described dyes of the formula   where the ring A may be benzofused, R1   is substituted or unsubstituted C1-C13-alkyl, substi-tuted  or  unsubstituted phenyl,  C1-C8-alkanoyl, substituted or unsubstituted benzoyl, C2-C4-alkanoyl substituted by a quaternizable or quaternary group, or substituted diaminotriazinyl, R2   is hydrogen or C1-C4-alkyl or R1 and R2 together with the  nitrogen  atom joining  them  together  are  a heterocyclic radical, R3   and R4 are each substituted or unsubstituted C1-C13-alkyl, substituted or unsubstituted C5-C7-cycloalkyl or substituted or unsubstituted piperidinyl and R3 may also be hydrogen, R5   is hydrogen C1-C4-alkyl, C1-C4-alkoxy, C2-C3-alkan-oylamino,  halogen,  nitro,  cyano,  substituted or unsubstituted phenylazo, C2-C4-alkanoylamino substi-tuted by a quaternizable or quaternary group,  or C2-C4-alkoxy,  C2-C4-alkoxycarbonyl  or C2-C4-alkoxy-carbamoyl which are each substituted by a quaterniz-able or quaternary group, and R6   is  hydrogen,  C1-C4-alkyl,  C1-C4-alkoxy,  halogen, nitro or cyano, with the proviso that at least one quaternizable or quaternary group is present in the molecule,  the use thereof for dyeing or printing polymeric material, and novel amide of J-acid.
Patent CA-2106846-A1 (CA)
Title: Closure element
Inventor: EARLE ANTHONY
IPC: B65D47/26
Filed: 1992-04-02
Abstract: A closure element for a container of fluids. The closure element (20) has a body (23) which is attached to an outlet of the container. The closure element includes a spout (24) which is movable between a position in which it prevents fluid flow through the spout and a position in which it allows such flow. The spout (24) is dimensioned so that it extends beyond the periphery of the body (23) in both its positions to facilitate attachment to a pipe (26).
Patent CA-2108570-A1 (CA)
Title: Method and apparatus for charging battery
Inventor: SHIMOMOTO KENKICHI
IPC: H02J7/10
Filed: 1992-07-27
Abstract: ABSTRACT     The present invention relates to a battery charging method for charging a battery such as a lead acid storage battery quickly, and  a battery charging apparatus used in carrying  out  the  battery charging  method,  whereby  an initial charging process between times 0 to t1,  a quick charging process  between times  t1  to  t2  and  a  final charging process between times t2 to t3 are carried out in step-wise  and  continuously.   In  the  initial  charging process, a charging current whose volume of electricity is increased gradually is applied.   In the quick charging process, a charging current whose volume of electricity is larger  than  the  initial  charging  process  is  applied intermittently to a battery while watching a voltage.   In the final charging process, a charging current whose volume of electricity is reduced gradually is applied to  the battery when the voltage has reached a charge-end voltage.          Thereby, it is possible to charge in a very short time, and to penetrate the charging into electrodes without damaging the battery.
Patent CA-2110384-A1 (CA)
Title: Liquid composition as a milk substitute
Inventor: FERRARO DANIEL A
IPC: A23C9/154
Filed: 1992-09-23
Abstract: A liquid composition includes effective amounts of water, raw milk, dry milk powder, vanilla, natural butter flavoring and a natural thickening agent. The composition is mixed, pasteurised and homogenized. The composition has the same flavor and texture as milk with a reduced fat content.
Patent CA-2111074-A1 (CA)
Title: Token star bridge
Inventor: BASSO CLAUDE
IPC: H04L12/56
Filed: 1993-12-09
Abstract: TOKEN STAR BRIDGE  ABSTRACT The invention includes a bridge having n ports (n > 1), each port being con-nected to a Token-Ring physical segment, each physical segment having one native Token-Ring workstation attached, said bridge comprising means for emulating to the workstations a single Token-Ring logical segment with a sin-gle Active Monitor and a single Ring Number. The invention allows to replace a MAC-per-port by a centralized function in-side a centralized processor; the frame handling function, due to the fixed and limited configuration (same bridge Active Monitor seen by all connected stations), does not require a multi-port bridge function, but a simpler switch function between ports. Bridge clocking is also simplified, and a cost effectiveUTP retiming solution is presented.
Patent CA-2120440-A1 (CA)
Title: Method of lowering the density of ammonium nitrate-based mining explosives
Inventor: LOWNDS CHARLES M
IPC: C06B31/30
Filed: 1994-03-31
Abstract: METHOD OF LOWERING THE DENSITY OF AMMONIUM       NITRATE-BASED MINING EXPLOSIVES                  ABSTRACT OF THE DISCLOSURE     The density of ammonium nitrate-based mining explo-sives, such as ANFO, heavy ANFO and emulsion explosives, is lowered by adding an expanded grain,  such as expanded popcorn, expanded rice, or expanded wheat, to the explo-sive.  As much as 10% of the explosive composition may be an expanded grain.  The present invention may be used with porous ammonium nitrate, dense agricultural grade ammonium nitrate, crystalline ammonium nitrate, and ground ammonium nitrate.
Patent CA-2122686-A1 (CA)
Title: Articulating bed
Inventor: SUGGITT ROBERT WAYNE
IPC: A61G7/008
Filed: 1994-05-02
Abstract: An articulated bed comprising: a central platen comprising a headboard end, a footboard end, a first side platen edge and a second side platen edge; a headboard frame pivotally connected to the headboard end of the central platen at a headboard frame pivot point with a central platen headboard bar linkage,  a footboard frame pivotally connected to the footboard end of the central platen at a footboard frame pivot point with a central platen footboard bar linkage: a first side platen hinged to the first side platen edge of the central platen, connected to the headboard frame with a first side platen headboard bar linkage and connected to the footboard frame with a first side platen footboard bar linkage; a second side platen hinged to second side platen edge of the central platen, connected to the headboard frame with a second side platen headboard bar linkage and connected to the footboard frame with a second  side  platen  footboard  bar  linkage;  and  means for articulating at least one of the central platen headboard bar linkage and the central platen footboard bar linkage.
Patent CA-2123830-A1 (CA)
Title: Differential pressure controlling method for plate reformer of fuel cell power generation system
Inventor: MORIMOTO HIROMASA
IPC: H01M8/06
Filed: 1994-05-18
Abstract: The method controls a differential pressure of a plate reformer installed in a fuel cell power generation system.     In the power generation system, a raw material gas is reformed to a fuel gas in the plate reformer, the fuel gas is fed to an anode of a fuel cell, an anode exhaust gas from the anode is fed to a combustion chamber of the plate reformer, a combustion exhaust gas from the combustion chamber is fed to a cathode of the fuel cell together with an air, and part of the air is fed to the combustion chamber. The method includes the steps of placing the plate reformer in a pressure vessel, maintaining a pressure of a cathode exhaust gas to a constant value, feeding part of the air to be fed to the cathode and all of the anode exhaust gas into the combustion chamber to make a pressure of the air and that of the anode exhaust gas substantially the same so as to make a pressure of the reforming chamber arid that of the combustion chamber substantially the same, and forming an opening on a line which feeds the air into the combustion chamber to allow the air to enter the pressure vessel so as to make the pressure of the reforming chamber, that of the combustion chamber and that of the pressure vessel substantially the same.
Patent CA-2125123-A1 (CA)
Title: Flameproof toaster cover
Inventor: MCNAIR JOHN DUNCAN
IPC: A47J37/08
Filed: 1994-06-03
Abstract: FLAMEPROOF TOASTER COVER                    ABSTRACT    A cover for a toaster capable of retaining flame from a fire within the body of the toaster.          The cover comprises a first wall adapted to overlie an access opening to a toaster compartment within the toaster, the first wall having a plurality of slot-like apertures formed therein with a second member partially or fully overlying each slot-like aperture but being located in a plane spaced from that of the first wall. The slot-like apertures (60) are disposed transversely to a longitudinal axis of the toasting compartment whereby flame within the toasting compartment is substantially prevented from passing through the cover but convection heat from within the toasting compartment is capable of passing through the slot like apertures
Patent CA-2129748-A1 (CA)
Title: Audio-visual language teaching apparatus and method
Inventor: KAMINSKI MAREK
IPC: G09B5/06
Filed: 1993-02-03
Abstract: Apparatus and method for teaching a language includes an audio visual medium for displaying a story on a screen in visual form accompanied by a sound track of said story in a language to be learned. A text is provided containing the story in written form with successive short segments of said story identified by means of sequential identifying indicia. The screen is provided with subtitles displaying each segment in written form in the language to be learned. Each of the subtitles is provided with sequential identifying indicia corresponding to those of the written text. Means are provided to start, stop, and reverse the audio visual medium to permit a user to locate and repeat a particular segment repeatedly as desired.
Patent CA-2133601-A1 (CA)
Inventor: PATEL BALDEV
IPC: G07C3/00
Filed: 1994-10-04
Abstract: An industrial equipment operating status scanner for recording the location and exact time of all switch/contact openings in an industrial machine or process.  The scanner of the present invention also provides an indication as to whether the fault was intermittent or continuous.  Thus, system fault diagnosis is made simple and reliable, resulting in less down time and less loss of revenue to the owner of the industrial machine(s) or process.  The scanner provides an indication firstly of whether or not the machine is operational, secondly, in the event of an intermittent problem, the scanner displays which input device is faulty, and thirdly, in the event that operation of the machine has been stopped, the scanner displays which input device caused it to stop. In addition to the foregoing, the scanner displays also which input is preventing the machine from starting again.  The time and date of the fault is also displayed by the scanner of the present invention.  Thus, the scanner provides monitoring of the status of a machine's circuits and diagnoses any faults.  It also records the machine's running time as well as the down time.
Patent CA-2135770-A1 (CA)
Title: Non-fibrogenic, alginate-coated transplants, process of manufacture and method of use thereof
Inventor: DORIAN RANDEL E
IPC: A61K35/12
Filed: 1993-06-01
Abstract: A tissue transplant comprises viable, physiologically active, tissue cells and has a non-fibrogenic coating of a divalent metal alginate. The coating has a sufficiently low permeability and a sufficiently large thickness to protect the tissue cells from host immunological agents after transplantation, and is sufficiently permeable and thin to permit the diffusion of sufficient cell nutrients and cell products through the coating required for cell viability. The tissue cells may be pancreatic islet cells, neural cells, renal cortex cells, vascular endothelial cells, thyroid cells, adrenal cells, thymic cells, ovarian cells, hepatic cells, and the like.
Patent CA-2138100-A1 (CA)
Title: Methods of treating menstrual symptoms and compositions therefor
Inventor: FONTANA STEVEN A
IPC: A61K31/445
Filed: 1994-12-14
Abstract: The present invention provides a method of alleviating one or more menstrual symptoms in a woman comprising administering to said woman in need of treatment an effective amount of a compound having the formula   wherein R1 and R3 are independently hydrogen, -CH3, -CO-(C1-C6 alkyl), or -CO-Ar in which Ar is optionally substituted phenyl; and R2 is selected from the group consisting of pyrrolidino, hexamethyleneimino and piperidino; or a pharmaceutically acceptable salt or solvate thereof.          The present invention also provides the aforementioned method and further comprises administering to said woman an effective amount of at least one pharmaceutical agent selected from the group consisting of an analgesic, a diuretic, and an antihistamine, and compositions therefore.
Patent CA-2138537-A1 (CA)
Title: Symmetric multiprocessing system with unified environment and distributed system functions
Inventor: BERTONE JAMES
IPC: G06F12/0804
Filed: 1994-04-28
Abstract: A symmetric multiprocessing system with a unified environment and distributed system functions provides unified address space for all functional units in the system while distributing the execution of various system functions over the functional units of the system whereby each functional unit assumes responsibility for its own aspects of these operations. In addition, the system provides improved system bus operation for transfer of data from memory.
Patent CA-2139627-A1 (CA)
Inventor: ALMGREN KNUT MAGNUS
IPC: H04B7/26
Filed: 1994-05-10
Abstract: A method for optimizing the use of channels, the changing of channels and handover procedures in a mobile telecommunications system for instance, wherein parameters belonging to the mobile telecommunications system generate the load values for the connections via different channels/base stations between subscribers in a public telephone network and mobile stations in the mobile telecommunications systems.  Different kinds of parameters can be compared directly by means of the load values which are combined to provide a total load value for each connection.  A first total load value is generated for a connection set-up between one of the subscribers and one of the mobile stations.  The total load values for the connection are estimated for alternative channels/base stations and these total load values are compared with the first total load value.  The system changes to the channel/base station that has the most favourable load value, on the basis of the comparison.  The load values can also be used to optimize the resources within one or more base stations, so that the sum of the load values for the connections within one or more base stations will become the most advantageous.
Patent CA-2139715-A1 (CA)
Title: Synchronized pulse arc starter and stabilizer for arc welding
Inventor: HUTCHISON RICHARD M
IPC: B23K9/073
Filed: 1995-01-06
Abstract: A method and apparatus for stabilizing a welding arc is disclosed.  The apparatus includes a source of welding current connected across the welding terminal and the workpiece terminal and an impulse transformer.  A switch is provided to controllably  connect the impulse transformer in parallel with the source of welding current when the arc needs to be started or re-established.  The source of power may be ac or dc, and in one embodiment is a sinusoidal ac source.  The method includes the steps of providing a welding current connected to the welding terminal and the workpiece terminal and connecting a voltage pulse to the terminals.  In one embodiment the voltage pulse is applied across the welding terminals in the event there is no welding arc.  In a second embodiment the power for the pulse is derived from the welding output.