baber/WOPTO huggingface dataset:
Patent CA-1276256-C (CA)
Title: Security fence with fuse wires fastened to posts via sensors
Inventor: SEIFERT HARALD
IPC: G08B13/12
Filed: 1987-07-15
Granted: 1990-11-13
Abstract: ABSTRACT             A security fence, in which contact sensors produce corresponding signals when the security wires are touched.  Each sensor is attached to two low-pass filters, the cutoff frequency of one filter being above, and below the cutoff frequency of the other filter being below the frequency spectrum of the sensor signal which occurs when the wire is deflected by a person.  The output signals of the low-pass filters are subtracted in a subtraction circuit.  If the subtracted output signal of the subtraction circuit exceeds a predetermined threshold, an alarm signal is released.  Deflections of the wire due to other circumstances and, therefore being in another frequency spectrum do not result in the alarm being released.
Patent CA-1296136-C (CA)
Title: Process for controlled polymerization of stereospecific alpha-olefins having preselected isotacticity
Inventor: ARDELL GEORGE G
IPC: C08F10/06
Filed: 1987-07-15
Granted: 1992-02-18
Abstract: PATENT APPLICATION                                BY                         GEORGE G. ARDELL REGINALD W. GECK J. MITCHELL JENKINS, III     WILLIAM G. SHEARD       FOR             PROCESS FOR CONTROLLED POLYMERIZATION OF STEREOSPECIFIC ALPHA-OLEFINS HAVING        PRESELECTED ISOTACTICITY                     ABSTRACT OF THE INVENTION A method and system for controlling and maintaining relatively constant the desired isotacticity of polypropylene produced by a reactor system employs a model which correlates isotacticity values to catalyst productivity values.  The model is generated from empirical data of the reactor system.  A particular catalyst productivity target value is then calculated from the model corresponding to a desired level of isotacticity selected for the product.  The instantaneous catalyst productivity of the system is then determined and compared to the catalyst productivity target value.  When the comparison between the instantaneous catalyst productivity value and the catalyst productivity target value indicates that the desired isotacticity for the polypropylene product will not be achieved, process operating variables are adjusted to move catalyst productivity, and hence isotacticity, to the target values.      The invention may be applied in reaction systems wherein the catalyst exhibits a predictable, i.e., relatively fixed relationship between catalyst productivity and the isotacticity of the polymer product.          In a preferred embodiment, a control computer monitors system conditions and performs the necessary calculations and computerized feedback control is employed to implement the
Patent CA-1278707-C (CA)
Title: Motion transducer
Inventor: GLOVER ALFRED H
IPC: H01C10/10
Filed: 1987-09-16
Granted: 1991-01-08
Abstract: ABSTRACT OF THE DISCLOSURE A device for transmitting linear motion into rotary motion, particularly as applied to an oil pressure transducer for a vehicle I.C.E. Specifically, the linear movement is produced by action of pressure against a diaphragm as opposed by a yieldable spring. The spring is a wire curved into a helix shape and with the ends attached to a rotary table. The midportion of the spring is operably attached to the central portion of the diaphragm so that linear movement thereof toward the rotary table causes the spring's end portions to progressively engage the table in overlying relation and, accordingly, to produce rotation of the table.
Patent CA-1281725-C (CA)
Title: Process for the preparation of 2-(1-hydroxyalkyl)-5,5- diphenylhydantoin
Inventor: MAI KHUOUNG H X
IPC: C07D233/72
Filed: 1987-09-18
Granted: 1991-03-19
Abstract: ABSTRACT OF THE DISCLOSURE      Described is a process for preparing 2-(1-hydroxyalkyl)-5,5-diphenylhydantoin having the formula   where R1, R2 and R3 are each independently hydrogen, C1-C20 alkyl, C3-C12 cycloalkyl, C7-C15 aralkyl, unsubstituted or substituted aryl or heteroaryl or alternatively, or R1 and R2 together with the carbon atom form a 3 to 12 member cycloalkyl group, the process comprising:  reacting diphenylhydantoin with an aldehyde or a ketone in the presence of a strong inorganic base; an alcohol was used as solvent to solubilize the reactants.  The reaction is practically complete in 15 minutes.     The compounds so prepared are intermediates in the preparation of phenytoin prodrugs.
Patent CA-1339032-C (CA)
Inventor: KOTHS KIRSTON E
IPC: C07K14/00
Filed: 1987-10-23
Granted: 1997-04-01
Abstract: A  colony  stimulating  factor,  CSF-1,  is a lymphokine  useful  in  regulating  the  immune  system. CSF-1  is  obtained  in  usable  amounts  by  recombinant methods,  including cloning and expression of the murine and  human DNA  sequences  encoding this  protein.   Both "long"  and  "short"  forms  of  this  protein and muteins corresponding to the cDNA-encoded forms are disclosed.
Patent CA-1291206-C (CA)
Inventor: TOMANTSCHGER KLAUS
IPC: H01M6/04
Filed: 1987-10-27
Granted: 1991-10-22
Abstract: CATALYTIC RECOMBINATION OF EVOLVED OXYGEN         IN GALVANIC  CELLS         ABSTRACT OF THE DISCLOSURE:         In  rechargeable,   electrochemical  cells,  oxygen  may evolve  on  charge,   overcharge  or  any  reversal   of polarity.   The   invention   concerns   an   auxiliary, electrochemical,  transfer  electrode  to  catalyze  the recombination  of such oxygen with the anode  mass.  The auxiliary  electrode comprises porous carbon bonded  with PTFE and is used in a cell having a zinc anode,  a metal oxide   cathode  and an  aqueous  alkaline  electrolyte contacting both anode and cathode.
Patent CA-1317504-C (CA)
Title: Process for treating raw soybeans
Inventor: VAN LIERE MERLE
IPC: A23L11/00
Filed: 1987-10-30
Granted: 1993-05-11
Abstract: PROCESS FOR TREATING RAW SOYBEANS                 Abstract of the Disclosure A process for producing a full-fat flaked soybean product having 18% soybean fat and a urease activity of 0.02-0.2 is provided.  Raw soybeans with hulls in tact are subjected to steaming at temperatures greater than 220°F, followed by flaking in a roller mill having grooved rollers.  The flaked soybeans are thereafter dried in a forced air dryer by the alternating application of superheated air at temperatures in excess of 300°F and cooled to ambient temperature.
Patent CA-1276238-C (CA)
Title: Satellite communications system for mobile users
Inventor: ROSEN HAROLD A
IPC: H04B7/208
Filed: 1987-11-03
Granted: 1990-11-13
Abstract: SATELLITE COMMUNICATIONS SYSTEM FOR MOBILE USERS                  ABSTRACT OF THE DISCLOSURE        A satellite communications system is disclosed that would allow for communication between mobile (11, 12, 14) and fixed terminals (16).  The communications system includes a plurality of mobile users (11), a satellite (13) in geosynchronous orbit for providing frequency addressable uplink and downlink signals to the mobile terminals (11, 12,  14), a base station (10) for receiving signals from and transmitting signals to the satellite and a plurality of fixed users (16) coupled to the base station (10).  The system provides the advantage of frequency reusability and frequency addressability in the uplink and downlink transmissions of the mobile users (11, 12, 14).
Patent CA-1297918-C (CA)
Title: Exercise apparatus
Inventor: FENWICK CHAD
IPC: A63B21/068
Filed: 1987-12-03
Granted: 1992-03-24
Abstract: ABSTRACT           A device for exercising producing limited strain on the back. The exerciser is supported on a base which also provides a mounting surface for an upright.   The upright supports a leg rest where the exerciser's legs are placed during use.  With legs elevated on the leg rest the exerciser does sit-ups.  Attachment of the leg rest to the upright is done in such a way that it may be disposed at a plurality of heights for adjustment to the user's needs.  To vary the exercise difficulty the angle of inclination of the platform may be adjusted either when used in conjunction with other exercise apparatus or when used alone with use of the appropriate attachment.     psc:fenwick;patents
Patent CA-1312678-C (CA)
Title: Multilayer printed circuit board
Inventor: DAHLGREN VICTOR F
IPC: H05K3/46
Filed: 1987-12-10
Granted: 1993-01-12
Abstract: ABSTRACT OF THE DISCLOSURE         Apparatus and method for protecting intermediate layers of a multi-layer printed circuit board from chemical or other damage from processing of a layer or layers to which previously fabricated layers of the printed circuit board are attached prior to such additional processing.  A thin layer of protective material is selectively attached to intermediate or inner layers of a multi-layer printed circuit board after fabrication of such layers, when the outer or subsequent layers are attached.  Inner or intermediate layer(s) of a multi-layer printed circuit board are fabricated.  When outer layer(s) of the resulting printed circuit board are attached to the inner or intermediate layer(s), a layer of protective material such as a thin sheet of chemical-resistive plastic is disposed between the inner or intermediate layer(s) and the outer layer(s) and is selectively or completely attached or bonded thereto such as with a layer of acrylic adhesive.  The outer layer or layers can then be processed in the usual manner without adversely affecting or damaging the inner or intermediate layer or layers.  Following such fabrication, if desired, the portion of the outer layer(s) to which a protective layer is attached, in areas where the protective layer is not attached to the inner or intermediate layer or layers, can be removed from the resulting multi-layer structure such as by routing or cutting the section desired to be removed.
Patent CA-1305527-C (CA)
Title: Speaker driver
Inventor: YAMASAKI KOJI
IPC: H04W88/02
Filed: 1988-02-04
Granted: 1992-07-21
Abstract: Abstract of the Disclosure A speaker driver is operated by a battery and drives a speaker to generate an alert tone in response to an externally input intermittent signal.  The speaker driver includes a reference voltage generator for generating a reference voltage, a transconductance amplifier for outputting a current corresponding to a differential voltage between a voltage of the battery and the reference voltage, an output control switch for ON/OFF-controlling the output current from the transconductance amplifier in accordance with the intermittent signal, and a DC amplifier for amplifying the ON/OFF-controlled output current as a driving current for the speaker.  Since a speaker driving current is decreased as a power source voltage is dropped, an abnormal voltage drop during an alert generation period can be prevented, thereby prolonging the service life of a battery.
Patent CA-1322064-C (CA)
Title: Vinyl acetate-ethylene copolymer emulsions prepared in the presence of a stabilizing system of a low molecular weight polyvinyl alcohol and a surfactant
Inventor: LENNEY WILLIAM E
IPC: C08F218/08
Filed: 1988-02-10
Granted: 1993-09-07
Abstract: ABSTRACT    A vinyl acetate-ethylene copolymer emulsion which is about 65-70% solids and has a viscosity of less than about 3,500 is disclosed.  The emulsion is prepared by copolymerization of vinyl acetate and ethylene monomers in the presence of a stabllizing system consisting essentially of 2-4 wt%, based on vinyl acetate monomer, of a polyvinyl alcohol having a 100-600 degree of polymerization and 2-4 wt%, based on vinyl acetate monomer, of a surfactant.  Such emulsions demonstrate an improved speed of set as an adhesive.
Patent CA-1336810-C (CA)
Title: Synergistic interplay of lymphokines and double stranded rnas
Inventor: CARTER WILLIAM A
IPC: A61K31/70
Filed: 1988-03-01
Granted: 1995-08-29
Abstract: The unexpected synergistic interplay between lymphokines and dsRNAs which dramatically reduces the necessary dosages of lymphokines, especially IL-2, and simultaneously widens their therapeutic range in the treatment of various types of cancers, viral disorders or other body conditions characterized by disregulated immune states (e.g., autoimmune diseases).  Specific combinations of dsRNA plus IL-2 significantly increase survival in human melanoma-bearing animals in part because of augmentation by dsRNA of lymphokine activated killer cells (LAK) which are first formed in response to IL-2 exposure.  The invention has wide applicability to non-toxic, efficacious control of both human cancer and various human viral infections and immunoregulatory disorders.
Patent CA-1310697-C (CA)
Title: Bus for cellular telephone
Inventor: ANDERSON GREGORY D
IPC: H04M11/00
Filed: 1988-04-07
Granted: 1992-11-24
Abstract: ABSTRACT OF THE DISCLOSURE         An apparatus for interconnecting a cellular telephone transceiver and one or more peripheral devices, such as handsets or speakerphones, is disclosed.  The apparatus provides a bus-type interconnection in which multiple peripheral devices may connect with a single transceiver, and the flow of information from the peripheral devices to the transceiver is regulated in accordance with a protocol.
Patent CA-1305684-C (CA)
Title: Closure cap for infusion and transfusion bottles
Inventor: VON SCHUCKMANN ALFRED
IPC: A61M5/14
Filed: 1988-05-02
Granted: 1992-07-28
Abstract: CLOSURE CAP FOR INFUSION AND TRANSFUSION BOTTLES        ABSTRACT OF THE DISCLOSURE      The present invention relates to a closure cap for infusion and transfusion bottles, having a rim cap which grips around a rim neck of the bottle and has a cutout which is closed by a plastic lid in such a manner that an annular zone of the plastic lid grips below the edge of the cutout, and it proposes, for the obtaining of a tightly sealed attachment of the lid which can nevertheless be lifted off with relatively little force, a radially extending intended-bend line (x-x) of the plastic lid, formed by thinning of the material.
Patent CA-1317009-C (CA)
Title: Method and a device for laser-optical navigation
Inventor: OLSEN BENGT O
IPC: G01S17/87
Filed: 1988-06-16
Granted: 1993-04-27
Abstract: ABSTRACT            In accordance with a laser-optical navigation method a rotationally pulsed beam of light in the form of a vertical disc is emitted from a sensor unit. Light reflected from reflectors is registered by the sensor unit and is computer processed for position determination purposes. In a device designed to perform the method the sensor unit comprises means which are arranged to emit a rotationally pulsed beam of light in the form of a vertical disc. The device also comprises means for measuring the elevation angle position of the device and an angle transducer for determination of the lateral angle position. A first computer effects an image analysis operation and a second computer executes the navigation determination calculations on the basis of information received from the first computer.            Fig. 3
Patent CA-1310131-C (CA)
Inventor: KIROUAC DONALD L
IPC: G06F9/445
Filed: 1988-09-19
Granted: 1992-11-10
Abstract: ABSTRACT OF THE DISCLOSURE           A method and system are provided for updating the software used in remote computer systems from a central computer system.  The method includes storing in the central computer system, copies of the software used in each remote computer system.  When the copies of the software in the central computer system are upgraded, for example, to correct the software, to add new facilities, to change user interfaces, to make cosmetic changes, to improve performance, etc., each change made to the software is monitored and stored.  The remote computer systems are permitted access to the central computer system via communication links and the software in the remote computer systems and the corresponding software in the central computer system are compared. All of the changes that have been made to the software at the central computer system which have not been made to the corresponding software at the remote computer system accessing the central computer are detected.  The detected changes are then transmitted to the remote computer system and applied to the software therein in order to upgrade the software in the remote computer system.  The upgraded software in the remote computer system is examined to ensure that the software has been changed correctly.  The method allows the software at the remote computer systems to be upgraded even while the software at the remote site is being used.  The system and method also allow the software used in the remote computer systems to be upgraded when the remote computer systems use different versions of the software and allow the software to be upgraded in a variety of hardware environments and operating systems.
Patent CA-1321943-C (CA)
Title: Paint removal using oil-in-water emulsions
Inventor: PATZELT ROBERT R
IPC: C09D7/00
Filed: 1988-10-21
Granted: 1993-09-07
Abstract: ABSTRACT OF THE DISCLOSURE         Oversprayed paint particles in a paint spray booth are received in a sump by an oil-in-water emulsion comprising an organic liquid, an emulsifier and water.  Build up of paint solids in the emulsion is allowed to continue until at least 5 parts by weight of paint solids have been received by the emulsion for every 100 parts by weight of organic liquid in the emulsion.  After the amount of paint solids has reached at least 5 parts by weight, preferably at least 10 parts by weight, the paint solids are removed from the emulsion.  The removed paint solids can be used as a fuel.
Patent CA-1311800-C (CA)
Title: Independent emergency lighting system with self-diagnosis
Inventor: BEGHELLI GIAN P
IPC: G08B5/36
Filed: 1988-10-27
Granted: 1992-12-22
Abstract: ABSTRACT            An emergency lighting system of an advanced type which through the use of an appropriate microprocessor can be used to check the recharging current and voltage of the batteries and detect faults in the circuit and the fluorescent or incandescent lamps, with the programming and performance of a functional test over a programmable period, with a visual display and the programming and performance of an independence test at programmable intervals. The results of the periodical fault tests and the independence test are communicated to a centralised control and monitoring unit which can be activated remotely and is also capable of receiving and transmitting operating orders to the individual emergency u-nits. A microprocessor circuit for performing the periodical fun-ctional test on the connected lamps, and for programming and per-formance of the independence test at programmable intervals, pro-viding an indication of defective lamps and deactivating one or more lamps, is included in the battery unit.
Patent CA-1291251-C (CA)
Inventor: DAVID JACQUES
IPC: G01S13/34
Filed: 1988-11-17
Granted: 1991-10-22
Abstract: The invention relates to a radioaltimeter type detector comprising an oscillator-transmitter (10), a modulator (20) suitable for frequency modulating the oscillator-transmitter according to a given characteristic, a mixer receiving the signal from the oscillator-transmitter and a corresponding echo signal reflected by a target, and a discriminator circuit (50, 60) connected to the output from the mixer. According to the invention, the modulator (20) includes a digital memory (21) containing a series of values defining the frequency modulation characteristic of the oscillator-transmitter (10).
Patent CA-1324399-C (CA)
Inventor: ANTHONSEN NIELS A
IPC: D21G1/02
Filed: 1988-12-13
Granted: 1993-11-16
Abstract: ROTARY JOINT             ABSTRACT OF THE DISCLOSURE        This invention is directed to a novel rotary joint or coupling which is useful for coupling a rotat-ing element to a non-rotating element.   More particu-larly,  this invention is directed to a novel rotary joint or coupling which couples a rotating element to a non-rotating element and allows for the passage of a process fluid from the rotating element to the non-rotating element or vice versa, and seals the flowing process fluid from the external environment.  A rotary joint useful for connecting a stationary object to a rotating object comprising:   (a) bearing housing means adapted to be joined to either the rotating or  the stationary object; (b) fluid conveying means adapted to be joined to either the stationary or rotating object to which the bearing housing means is not joined;  (c) sealing means positioned between the fluid conveying means  and  the bearing housing means  for  preventing migration of fluid from the fluid conveying means into the bearing housing means;  and  (d)  rotatable bearing means positioned between the bearing housing means and the fluid conveying means, and exterior to the sealing means, said bearing means being lubricated and cooled by a lubricating means.
Patent CA-1337246-C (CA)
Inventor: PLESSERS JACQUES JOSEPH
IPC: G01N33/20
Filed: 1989-02-03
Granted: 1995-10-10
Abstract: Carrier gas is pumped in the gas supply line of a probe which contains a gas supply line sealed by a fusible stopper and a gas removal line. The probe is immersed in the bath of liquid metal and as soon as the pressure drops at the melting away of the stopper and consequently the opening of the gas supply line is determined, the measuring cyclus is started, the lines are first flushed with carrier gas and then said carrier gas  is pumped by the pump through the probe, the circuit and the katharometer.
Patent CA-1312219-C (CA)
Title: Process of controlling foam which limits acids mist during electrowinning
Inventor: SANMIYA TEI S
IPC: G01N13/02
Filed: 1989-02-21
Granted: 1993-01-05
Abstract: A PROCESS OF CONTROLLING FOAM WHICH LIMITS ACID MIST DURING ELECTROWINNING                ABSTRACT           The process for measuring foaming capacity of surfactant used in controlling acid mist production during electrowinning.  The invention sends a portion of an electrolyte containing surfactant to a test chamber.  The electrolyte is gasified in the test chamber to form bubbles which rise and accumulate above the electrolyte in the test chamber.  The foam layer has a height proportional to the foaming capacity of the electrolyte.  The height of the foam in the test chamber is measured to determine the amount of surfactant to add to the electrolyte for effective foaming in the electrolytic cell.
Patent CA-1334276-C (CA)
Inventor: TSUCHIYA MASAKAZU
IPC: G01N33/579
Filed: 1989-03-14
Granted: 1995-02-07
Abstract: A reagent obtained by bringing an extracted solution of horseshoe crab hemocyte lysate into temporary contact with a treating agent such as a water-insoluble polysaccharide containing .beta.-1,3-glucosidic linkage and freeing the extracted solution from said treating agent is effective for specifically measuring endotoxin.
Patent CA-1333062-C (CA)
Inventor: OSADCHUK MARK
IPC: E02D17/12
Filed: 1989-05-01
Granted: 1994-11-15
Abstract: An improved pipeline padding apparatus includes a separator for separating fine material out of spoil which is piled along side an excavation, an elevator for transporting spoil to the separator, a pair of guide projections for guiding spoil into the elevator and a pair of auger type devices for directing spoil from the guiding projections both toward the elevator and in the elevating direction.  A conveyor is provided to transport the separated fine portion of the spoil back into the excavation, thereby padding the pipeline.  The elevator, guide and augers are pivotally adjustable as a unit with respect to a tracked vehicle, which provides maximum adjustability.  In a second embodiment for use in rocky soil, the auger-type devices are eliminated and the guide projections are given a broader, concave inner guide surface.