baber/WOPTO huggingface dataset:
Patent CA-2056886-A1 (CA)
Inventor: PASTOR JOSE
IPC: H04L9/06
Filed: 1991-12-04
Abstract: A method for the secure communication of messages.  A first party is provided with a set of numbers that have the property that when encrypted using an RSA encryption key the resulting set of encrypted numbers is of an order substantially smaller than that of the original set.  If the encryption key and the original set of numbers are of the order of 200 decimal digits then the resulting set of encrypted numbers may be of the order of 15-30 decimal digits. To communicate a message the first party selects a number from the original set and applies a hashing function to the selected number to obtain a 64 binary bit DES key.  The selected number is then encrypted with the RSA key and a message is encrypted with the DES key obtained.  The encrypted message and the encrypted selected number are combined and the combined message is sent to a second party who has the corresponding RSA decryption key and knows the hashing function.  The second party then decrypts the number, applies the hashing function to obtain the DES key and decrypts the message.  Thus the parties may communicate with substantially the security of RSA while significantly reducing the minimum message length which may be securely encrypted.
Patent CA-2057312-A1 (CA)
Title: Process for producing aldehydes
Inventor: HERRMANN WOLFGANG
IPC: C07B61/00
Filed: 1991-12-09
Abstract: The invention relates to the hydroformylation of olefins and olefinically unsaturated compounds in the presence of a water-soluble rhodium complex compound which contains, as a ligand, at least one sulfonated diphosphine.
Patent CA-2058468-A1 (CA)
Title: Aircraft hold-down device
Inventor: STUMP JOSEPH W
IPC: B64F1/16
Filed: 1991-12-27
Abstract: ABSTRACT OF THE DISCLOSURE      An aircraft securement device  includes a  sliding shaft, typically mounted to the aircraft landing gear.  The shaft resembles a harpoon and is lowered through a wire grid when deployed.  Tab-like members spring outwardly from the lower shaft end and engage the lower surface of a grid so as to retain the aircraft thereto.
Patent CA-2058872-A1 (CA)
Inventor: AMBROSIUS DOROTHEA
IPC: C12N15/09
Filed: 1992-01-07
Abstract: The present invention concerns a process for the isolation of recombinant IgA protease from inclusion bodies. In addition a recombinant DNA is claimed which codes for an IgA protease whose C-terminal helper sequence and preferably also its N-terminal signal sequence is no longer active.
Patent CA-2059416-A1 (CA)
Inventor: KAZUTAKA FUKUDA
IPC: B62M27/00
Filed: 1992-01-15
Abstract: A snowmobile having a liquid cooled transversely disposed internal combustion engine comprised of two blocks each containing two cylinder in aligned fashion. The coolant pump for the engine is disposed on one side of the engine and communicates with cooling jacket inlets on the other side through conduits that extend through the crankcase for controlling the temperature of the crankcase.
Patent CA-2061493-A1 (CA)
Title: Vacuum cleaning tool
Inventor: WOERWAG PETER
IPC: A47L9/04
Filed: 1992-02-20
Abstract: Abstract of the Disclosure A vacuum cleaning tool for a vacuum cleaner, including an intake opening and a brush roller that is disposed in the intake opening and is rotatably driven by an air turbine that in turn is driven by an intake air flow.  To obtain a high torque at the brush roller even when the intake  air stream fluctuates, the air turbine is embodied as a flow-through turbine having at least one ring-like blade arrangement, between the blades of which are formed axially delimited flow paths for radially receiving the intake air flow and guiding same into the center of the blade arrangement, and for radially discharging the intake air flow out of this inner space.
Patent CA-2062175-A1 (CA)
Title: System for determining the load of a vehicle or the like
Inventor: ZEGGEREN WILHELM A V
IPC: G01G9/00
Filed: 1992-03-02
Abstract: SYSTEM FOR DETERMINING THE LOAD OF A VEHICLE OR THE LIKE.               Abstract of the Disclosure A system for determining the load of a vehicle or the like comprises one or more measuring units with a transmitter/re-ceiver for sound waves, and a reflector surface being movable relative to the transmitter/receiver. Each measuring unit is connected by means of a Bowden cable or a pressure line with two measuring points, one of these points being connected to a frame portion of the vehicle, and the other point being connected to a part of the wheel axle. A control and proces-sing unit which is connected to the or each measuring unit, is equipped for determining the transit time of the sound waves between said transmitter/receiver and said reflector surface, and for deriving therefrom the distance between said two measuring points. For reference purposes, a dummy measu-ring unit is added to the system.
Patent CA-2062814-A1 (CA)
Title: Data network interface
Inventor: SORENSEN LARS S
IPC: H04M3/00
Filed: 1991-05-06
Abstract: This invention relates to an interface for interfacing between two different types of network, such as a GSM cellular radio network and an integrated services digital network (ISDN).      The interface communicates between first (B1, B2) and second (Bm) data channels and first (D) and second (Dm) control channels. It comprises: means for mapping control information between the first and second control channels; means for mapping data, in a first state of operation, between the first and second data channels under the control of control information on the control channels; and means for mapping data, in a second state of operation, between the first control channel (D) and the second data channel (Bm) under the control of control information on the control channel.
Patent CA-2063685-A1 (CA)
Title: Manufacture of rigid foams and compositions therefor
Inventor: DE VOS RIK
IPC: C08G18/72
Filed: 1992-03-20
Abstract: ABSTRACT            Manufacture Of Rigid Foams And Compositions Therefor The use of a liquid for the preparation of a rigid polyurethane and/or polyisocyanurate foam by reacting a polyisocyanate and a polyol in the presence of a blowing agent characterised in that the liquid is an inert, insoluble, non-blowing liquid.  CFC-free foams may be obtained showing good insulating properties.
Patent CA-2065140-A1 (CA)
Inventor: WITKOWSKI MICHAEL R
IPC: F02P5/152
Filed: 1992-04-03
Abstract: An ignition timing system activates combustion ignition apparatus in a combustion chamber at times established at least partly in response to a knock retard value.  The knock retard value is normally modified in response to a knock signal generated by a knock sensor during a knock window corresponding to a predetermined crankshaft rotational angle in which knock is to be sensed.  However, if the knock signal is determined to be present at the beginning of an occurrence of the knock window, modification of the knock retard value in response to the knock signal is prevented during that occurrence of the knock window, since a knock signal already present at the beginning of the knock window is assumed to be noise.
Patent CA-2065987-A1 (CA)
Title: Surgical instrument
Inventor: KOTHE LUTZ
IPC: A61B17/28
Filed: 1992-04-14
Abstract: ABSTRACT           A  surgical  instrument,  in  particular  for endoscopy, having closable jaws has jaw parts such as forceps or scissor limbs which are fixed on a pull element, at least one jaw part forms an axis of rota-tion with the pull element and is arranged rotatably about this axis of rotation; the pull element passes through a shank tube; a recess is formed in at least one jaw part, the center point of which rotates about a pivot  on  the  pull  element,  the  recess  at  least partially surrounds,  in the use position,  an annular piece provided in the wall of the shank tube and the jaw part rotates about this annular piece during its closing or opening movement.
Patent CA-2066739-A1 (CA)
Inventor: SKEIRIK RICHARD D
IPC: G05B13/02
Filed: 1991-07-25
Abstract: A neural network/expert system process control system and method combines the decision-making capabilities of expert systems with the predictive capabilities of neural networks for improved pro-cess control. Neural networks provide predictions of measurements which are difficult to make, or supervisory or regulatory control changes which are difficult to implement using classical control tech-niques. Expert systems make decisions automatically based on knowledge which is well-known and can be expressed in rules or other knowledge representation forms. Sensor and laboratory data is effectively used. In one approach, the output data from the neural network can be used by the controller in controlling the process, and the expert system can make a decision using sensor or lab data to control the controller(s). In another approach, the output data of the neural network can be used by the expert system in making its deci-sion, and control of the process carried out using lab or sensor data.      In another approach, the output data can be used both to control the process and to make decisions.
Patent CA-2067851-A1 (CA)
Inventor: NOVEROSKE ROBERT L
IPC: A01N37/02
Filed: 1992-05-01
Abstract: Disclosed are herbicidal concentrate formulation compositions having reduced grass crop plant phytotoxicity comprising certain sulfonamide or sulfonylurea herbicides in admixture with a herbicidal organic acid from the group consisting of elopyralid, 2,4-D, 2,4-DP, dicamba, dichlorprop-P, fluroxypyr MCPA, MCPP, mecoprop-P, picloram, triclopyr or mixtures of said acids; also disclosed is the preparation of said compositions and the pre- and post-emergent agricultural uses thereof in water diluted form.
Patent CA-2068637-A1 (CA)
Title: Magnetic inductor to revitalize water
Inventor: CANO RODRIGUEZ DON ANDRES
IPC: C02F1/48
Filed: 1992-05-13
Abstract: ABSTRACT --------Magnetic  inductor to  revitalize  water, formed  by  two facing  parts joined together by their  facing ends, each  of which  has a central  tubular portion that  has on  its  end  a cylindrical  lateral side  widening:  these  facing widenings on  each piece are male/female coupled together, and between them is placed  a central  internal disc perpendicular  to the  water flow  that runs between the  two facing tubular  parts, and which central  disc has concentric holes so  that the water  in the  chamber formed  by the disc  and one of  the widened  portions of  the parts, decreases  its speed  and is  submitted for a greater time to  the magnetic field created by  the ring shaped magnets placed in the  tubular portions:  and because the  tubular portions have a  shape for attaching  onto  the corresponding  water  outlet  and  intake,  and also  the inductor has  a lateral  cylindrical container  and another  two end  portions that form the corresponding inductor casing.
Patent CA-2068775-A1 (CA)
Title: Optical system, particularly an optical communication transmission system with optical control of an optical amplifier or wavelength conversion of the optical signals to be transmitted
Inventor: HEIDEMANN ROLF
IPC: H04B10/00
Filed: 1992-05-15
Abstract: Abstract OPTICAL SYSTEM, PARTICULARLY AN OPTICAL COMMUNICATION          TRANSMISSION SYSTEM WITH OPTICAL CONTROL OF AN OPTICAL          AMPLIFIER OR WAVELENGTH CONVERSION OF THE OPTICAL SIGNALS       TO BE TRANSMITTED       An optical system including an optical amplifier (20) containing a laser active substance whose laser active substance is excited by pump light to a metastable energy level, with the optical system further comprises, in addition to the laser (2) generating the amplifiable light (.lambda.2), a further laser (3) with whose output light the amplification of the amplifiable light can be controlled.  This is done in that absorption of the light (.lambda.3) of the further laser (3) causes transitions of the laser active substance from the metastable level to a higher level so that thus the occupa-tion of the metastable level can be influenced as this occupation is a function of the amplification of the light to be amplified.     A first application for the novel optical system is a communication transmission system in which the wavelength of the optical signal to be transmitted can be converted to the wavelength of the light amplifiable by the optical amplifier (20).  A second application is an optical communication transmission system in which the amplification of an optical signal to be transmitted can be optically controlled or is to be additionally modulatable with one or a plurality of addi-tional signals.     (Figure 1)1
Patent CA-2069976-A1 (CA)
Title: Retrieval system for graphic information
Inventor: NAKAZAWA SHIN-ICHI
IPC: G06F17/30
Filed: 1992-05-29
Abstract: ABSTRACT OF THE DISCLOSURE A retrieval system for graphic information stores two dimensional graphic information previously as retrieval keys in a database separately but in correspondence with three dimensional graphic information on a large number of shapes.  As the two dimensional graphic information can be displayed on a screen of CRT display unit, a user can watch the screen while retrieving the necessary information by viewing the screen.  Only when the target information is assigned, three dimensional graphic infor-mation is selected for display.
Patent CA-2072830-A1 (CA)
Title: Method and a system of smoothing and control of asynchronous time communication outputs
Inventor: BOYER PIERRE
IPC: H04L12/70
Filed: 1990-12-14
Abstract: A method for controlling the flux of asynchronous time communications formed by cells carried by an incoming time multiplex (XE) to supply an outgoing asynchronous time multiplex (XS), each incoming cell is arranged in a buffer memory (MT) with an address (Add) corresponding to its actual time of re-emission (t) on the outgoing time multiplex (XS), characterized in that it consists of comparing the number of cells (N) of a same communication, which are memorized in the buffer memory (MT) and which have not as yet been emitted at the arrival time of an incoming cell belonging to the communication, with a maximum number (NM) allotted to the communication and, in the case where the first number exceeds the second number, to not allow the incoming cell to be re-emitted.
Patent CA-2078922-A1 (CA)
Inventor: GORSKI BERNARD P
IPC: G01N3/04
Filed: 1992-09-23
Abstract: The invention relates to a device for use in the direct tensile testing of materials, in particular brittle materials, which is self-centring under eccentrically applied loads. The apparatus effectively communicates a compressive load applied thereto to a tensile load applied substantially concentrically to the pull axis of the test specimen and thus can be employed to obtain direct tensile test characteristics by utilizing devices capable of exerting compressive forces only. In one embodiment, the apparatus comprises a pair of grips for gripping the specimen which are pivotally attached at right angles to respective sleeves in a dual sleeve assembly. The sleeves are movable so as to self-centre the load which is applied, thereby eliminating bending stresses associated with off-centred loading and thus providing more accurate test results.
Patent CA-2083241-A1 (CA)
Title: Disposable nebulizer
Inventor: GLENN JOSEPH G
IPC: A61M15/00
Filed: 1992-11-18
Abstract: A  nebulizer  having  a  bottom  cup  for  storing  liquid medication.   The bottom cup has an opening therethrough to receive a source of pressurized air.  A housing includes an open bottom removably attachable to the bottom cup,  an open top outlet, walls extending therebetween,  and an air inlet tube extending through one of the walls, traversing the housing, and terminating in an aperture adjacent the open bottom so that air entering the inlet tube will pass through and across the housing before entering the housing adjacent the open bottom.  A cover is receivable within the bottom cup so that liquid medication can be drawn from the bottom cup by induction and form droplets, whereby the pressurized air and the liquid droplets will impinge on the air inlet tube of the housing, thereby breaking into micron-size droplets.
Patent CA-2084088-A1 (CA)
Title: Method and apparatus for reclaiming a refrigerant
Inventor: TODACK JAMES J
IPC: F25B43/00
Filed: 1991-05-24
Abstract: The object of the invention is to provide a method and apparatus for reclaiming refrigerants which includes a refrigerant boiler (6) having a refrigerant inlet (1) for admitting contaminated refrigerant into the boiler (6). The suction inlet of compressor (23) is connected to the vapor outlet of boiler (6) for lowering the pressure and temperature in the boiler (6) which draws the refri-gerant into the boiler (6) from the refrigerant inlet (1) and causes the refrigerant to vaporize and separate from most of the con-taminates contained therein. A condenser (28) is connected to the outlet of compressor (23) for receiving a heated compressed ref-rigerant vapor and the condenser (28) is positioned in a heat exchange relationship with the boiler (6) for heating it and also cooling the heated compressed vapor from the compressor (23) to a condensed liquid. A sump (42) is connected to the condenser (28) for receiving the condensed liquids for reuse.
Patent CA-2086577-A1 (CA)
Title: Potential target for immunotherapy to prevent replication of hiv (aids virus) in humans: cdna and protein for a putative regulator of hiv gag polyprotein expression reconstructed from the antisense strand of human p53 gene
Inventor: PREDDIE RICK E
IPC: C07K14/47
Filed: 1992-12-31
Abstract: ABSTRACT            A cDNA reconstructed from the antisense strand of human p53 gene encodes a 53 aa nuclear protein (Higaa) which has the potential for interacting with a domain of very highly conserved sequences in HIV gag polyprotein precursor. The protein which appears to be an intracellular activator of gag may be important for the successful replication of HIV in human cells. Since the protein is constitutively repressed by the p53 gene in normal cells, it is potentially a good target for a simple immunological approach to prevent multiplication of HIV following integration of the viral genome into the human genome.
Patent CA-2088003-A1 (CA)
Title: Prepolymeric imidazole compounds containing urea and/or urethane groups, and their use as curing agents for epoxy resins
Inventor: BURBA CHRISTIAN
IPC: C08G18/75
Filed: 1993-01-25
Abstract: ABSTRACT           The invention relates to prepolymeric imidazole derivatives containing urea and/or urethane groups and to their use as curing agents in fiber-reinforced plastics based on epoxy resins.
Patent CA-2090301-A1 (CA)
Title: New sulfated diosmin derivative
Inventor: ORJALES-VENERO D AURELIO
IPC: A61K31/7048
Filed: 1993-02-24
Abstract: The diosmin heptakis (hydrogensulfate) aluminium complex is described, as well as its preparation procedure, characterized by reacting one mole of diosmin with seven moles of a sulfating agent in a dry medium and treatment with an aqueous aluminium hydroxycloride solution of the diosmin heptakis (hydrogensulfate) sodium salt thus obtained. A description of pharmacological assays carried out to confirm the citoprotective action of the product is included.
Patent CA-2091958-A1 (CA)
Title: Modem unit
Inventor: ARAI YASUHIRO
IPC: H01M2/10
Filed: 1993-03-18
Abstract: A modem unit is adapted to be coupled between a land or radio telephone line and a terminal equipment, and is provided with a modem circuit for modulating data received from the terminal equipment and for demodulating data transmitted to the terminal equipment, and an isolation circuit for providing a DC isolation between the telephone line and the terminal equipment. The modem circuit and the isolation circuit are respectively provided on a single modem integrated circuit card.
Patent CA-2092176-A1 (CA)
Inventor: MATHIS DALE E
IPC: D04H1/724
Filed: 1991-09-30
Abstract: Disclosed are articles, such as smoke filters, which contain fibers that have complex geometry in combination with tobacco modify-ing agents such as flavorants. The fibers are preferably made of polyester such as poly(eth-ylene terephthalate) and preferably are cap-able of spontaneously transporting water or n-decane on their surfaces. The articles of the invention result in improved delivery of the to-bacco modifying agent to the user.
Patent CA-2092874-A1 (CA)
Inventor: TURBAN KARL-ALBERT
IPC: H04J13/00
Filed: 1993-03-29
Abstract: Technical problem: In data transmission or transmission of redundancy-reduced signals, traffic flow and therefore required transmission capacity are not constant. State of the art: More or less intensive temporal utilisation of existing total capacity through the use of differing numbers of time slots in multiplex mode (TDMA, ATM) or through non-utilisation of residual time. Basic principle: Coded transmission and simultaneous use of differing numbers of codes which are orthogonal in relation to one another. Solution: Mixed CDMA-TDMA radio system. The number of channels (code division multiplex CDMA) assigned to an individual station is adjusted frame by frame on the basis of requirements in preceding frames.
Patent CA-2092995-A1 (CA)
Title: Grinder for grinding a cylindrical or spherical surface of a roll, especially a paper machine roll
Inventor: MAIER URS
IPC: B24B5/36
Filed: 1992-06-30
Abstract: The grinder has a frame (6) movable on rollers (8) on which is fit-ted a grinding device (18) drivable by a motor (84). In order to simplify the grinder and its application to a roll (4) to be treated, the rollers (8) are designed to lower the frame (6) on a scraper (10) or a rail (56) of a scrap-er device (2) allocated to the roll (4) which replaces the scraper (10). The frame (6) has a supporting roller (14) fitted on an adjustable holder (12) which is laterally supported on a bearer (16) for the scraper (10).
Patent CA-2096279-A1 (CA)
Title: Fillable Curling Stone
Inventor: BLAIS GAETAN
IPC: A63B21/06
Filed: 1993-05-14
Abstract: A  curling  stone  comprising  a  body  of  conventional exterior shape having an upper and lower surface and a handle secured to the upper surface.   The body is provided with an interior chamber having an opening for passage into the chamber of a liquid or other such flowable substance, for weighting the stone, and a releasable closure means for the opening.
Patent CA-2096477-A1 (CA)
Title: Process for controlling the welding current as a function of welding speed in arc welding equipment
Inventor: KLEBL WOLFRAM
IPC: H02M9/00
Filed: 1993-05-18
Abstract: ABSTRACT OF THE DISCLOSURE       A welding speed-dependent voltaye (11) is added to a variable fixed voltage (13), to control the welding current as a function of welding speed in DC arc welding equipment, for the continuous welding of longitudinal seams of tube-shaped metal bands.  In addition, the sum (15) of speed-dependent voltage (11) and variable fixed voltage (13) is superimposed by a pulsed DC voltage by a summing amplifier (28).
Patent CA-2102579-A1 (CA)
Inventor: MINAKAWA MASAMI
IPC: B41N3/03
Filed: 1993-11-05
Abstract: Abstract of the Disclosure A paper plate for office offset printing has at least one side of a base paper composed of a water resistant middle layer made primarily of synthetic latex and a hydrophilic surface layer, which is applied to the top of the water resistant middle layer, made primarily of colloidal silica particles 20nm or less in diameter,  a slip agent and an adhesive.
Patent CA-2103322-A1 (CA)
Inventor: ROSE DEREK J
IPC: H01H37/52
Filed: 1993-11-17
Abstract: Upper and lower flexible blades carry normally closed contacts that are opened by upward movement of the upper blade responsive to snapping of a bimetal disc.  The disc is reset by a pushbutton movable from a rest position to a depressed reset position.  In its reset position, part of the reset button extends past the upper blade into engagement with the lower blade for moving and holding the lower contact away from the upper contact to prevent reclosing of the contacts until the pushbutton is moved back toward its rest position.