baber/WOPTO huggingface dataset:
Patent CA-2029525-A1 (CA)
Title: Constant voltage drive type driver circuit
Inventor: SHUTOU HIDEKI
IPC: H04L25/02
Filed: 1990-11-08
Abstract: ABSTRACT OF THE DISCLOSURE          A constant voltage drive type driver circuit includes a pulse transformer for outputting output pulses having a predetermined peak value and having primary and secondary windings, where the secondary winding has first and second terminals and an equivalent load impedance is connected to the primary winding when viewed from the pulse transformer excluding an impedance of the primary winding itself, a power source for supplying a voltage, a switching circuit for supplying the voltage from the power source to the secondary winding of the pulse transformer in a first mode and for cutting off the supply of the voltage to the secondary winding in a second mode in response to control signals, and a short-circuiting part for short-circuiting the first and second terminals of the secondary winding of the pulse transformer for a predetermined time from a time when the switching circuit assumes the second mode.
Patent CA-2030360-A1 (CA)
Title: Interrelational audio kinetic entertainment system
Inventor: ALDAVA MICHAEL B
IPC: H04N7/16
Filed: 1990-11-20
Abstract: Abstract Movable and audible toys and other animated devices spaced apart from a television screen are provided with program synchronized audio and control data to interreact with the program viewer in relationship to its programming.  A kinetic device actuating signal, sampling keyboard based encoder is coupled via an audio mixer to an audiovisual programming source and television transmitter carrying an audio based kinetic and audio signal complex.  At a remotely location, coded audio and kinetic device signals along with audiovisual programming is received and the audiovisual programming content is displayed for viewing and listening.  Stereo sound band based program audio signals are decoded and separated from the stereo sound band based device audio and kinetic signals.  The device audio and kinetic signals are retransmitted to a spaced apart toy causing the device to be audible and move in synchronization with the spaced apart audiovisual programming.  A single band low powered FM transmitter carries the audio kinetic signal complex in proximity yet spaced apart from a receiver coupled to an audio cassette configured magnetic head transducer disposed in the kinetic device to communicate audio and kinetic information to a device speaker and motors to cause the device to move and be audible.
Patent CA-2033214-A1 (CA)
Inventor: SILVERMAN GORDON
IPC: A61F5/01
Filed: 1990-05-22
Abstract: A system and method for the operant conditioning of subjects using biofeedback includes means to measure a variable condition, such as posture, which is controllable by the subject. The apparatus sets criteria which, if not met, may result in a negative reinforcement, such as unpleasant audio tone or, if the criteria is met, will reward the subject. The criteria is automatically adjusted, upwards or downwards, in accordance with the subject's history of reaching, or not reaching, the criteria. One embodiment is a device for the training of patients with idiopathic scoliosis (curvature of the spine), as a replacement for a brace. The device includes two cables, one about the chest to measure breathing and the other longitudinally about the trunk to measure spine length. The variable lengths of the cables are converted to digital signals by rotary-to-digital converters. The device includes a programmed microcomputer whose inputs are the digital converters which automatically adjusts the criteria and which controls a tone generator and its speaker to provide an audio feedback of out-of-criteria postures.
Patent CA-2035258-A1 (CA)
Inventor: SARPESHKAR ASHOK M
IPC: C08G18/66
Filed: 1991-01-30
Abstract: Mo3345 IMPACT ABSORBING MEDIA               ABSTRACT OF THE DISCLOSURE    The present invention is directed to a solid polyurethane composition having a glass transition temperature of from -20°C to 0°C, having a Bayshore rebound of less than 20, and having a Shore A hardness of less than 80, and being prepared by reacting:       a)  a polyisocyanate having an isocyanate group functionality of 3 or more, and an isocyanate group content of from 15 to 25% by weight, with b)  one or more diols having molecular weights of from 150 to about 650, wherein the isocyanate to hydroxyl equivalent ratio is from 0.95:1 to 1.2:1, and the weight ratio of component a) to component b) is from 5:1 to 1:1.5.     Mo3345
Patent CA-2036556-A1 (CA)
Title: Process for the production of pigmented powder coatings
Inventor: JUST CHRISTOPH
IPC: C09D5/46
Filed: 1991-02-18
Abstract: Abstract of the disclosure:          Process for the preparation of pigmented powder coatings The invention relates to a process for the preparation of pigmented crosslinkable powder coatings composed of a)  the binder component, b)   the hardener component, which can react with the binder component a) at elevated temperature, c)   pigments and d)   if appropriate customary powder coating additives, which comprises first dispersing component c)  and if appropriate component d) in all or some of binder com-ponent a) or all or some of hardener component b) with the aid of dispersing machines employed in the prepara-tion of solvent-containing coatings at a temperature above the melting range of component a) or b), and then mixing  the  dispersion with the  remaining  individual components in the customary manner, and extruding and grinding the mixture.       The pigmented powder coatings obtainable by this process allow coatings of improved surface quality, in particular improved flow and reduced orange peel effect,  to be obtained.
Patent CA-2038689-A1 (CA)
Title: Hand scanner for reading bar codes
Inventor: BENGTSSON KJELL
IPC: G06K7/10
Filed: 1991-03-20
Abstract: A hand scanner intended for optically reading a bar code on an item of goods and therewith produce an electric signal which corresponds to the read bar code. The invention is characterized in that the hand scanner (1) is provided with one or more permanent magnets (3, 4) in the vicinity of its optical bar-code reading device
Patent CA-2038970-A1 (CA)
Inventor: COLUCCI MICHAEL J
IPC: B65D81/26
Filed: 1991-03-25
Abstract: ABSTRACT OF THE DISCLOSURE        A controlled atmosphere package suitable for delivery of red-ripe tomatoes to the consumer maintains the tomato in a substantially fixed position relative to the package regardless of the orientation of the package, and further maintains a substantially uniform relative humidity inside the package.     38,445-F     38,445-F
Patent CA-2039235-A1 (CA)
Title: Complex sound-insulating material and flooring
Inventor: POURTAU JEAN-JACQUES
IPC: E04F15/18
Filed: 1991-03-27
Abstract: IN THE  C A N A D I A N PATENT & TRADEMARK OFFICE          PATENT APPLICATION entitled: Complex sound-insulating material and flooring in the names of:       Jean-Jacques POURTAU                        Thierry, Eric POURTAU assignee        :      TOMECANIC                    ABSTRACT OF THE DISCLOSURE This invention relates to a complex sound-insula-ting material comprising a first lower sub-assembly, itself comprising at least one layer of a bituminous product, and a second upper layer which covers said first sub-assembly. The first sub-assembly comprises a first upper layer, a first intermediate layer and a first lower layer, whilst a) each of the first upper and lower layers is made of oxidized bitumen reinforced with first fibers and has a surface mass of between 500 and 1000 g/m2; b) the first intermediate layer is made of an organic binding agent, such as a bitumen, and by second fibers which are embedded in said binding agent and are in a non-woven form; and c) the second upper layer is made of an elastic foam.     One application of the invention is the production of a sound-insulated tiled flooring.
Patent CA-2039460-A1 (CA)
Inventor: SAITO TOSHIHIKO
IPC: B03C3/017
Filed: 1991-03-28
Abstract: A toxic gas exhaust suppression-type combustion system burns a hydrocarbon-based fuel and comprises, an imcomplete combustion section for causing imcomplete combustion by supplying the fuel and a small amount of air, a solid component removing section, connected to said imcomplete combustion section, for collecting and removing a solid component, such as soot, within an unburned gas generated by said imcomplete combustion section, and a complete combustion section for perfectly burning a remaining unburned gas by supplying a sufficient amount of air, the remaining unburned gas being obtained by removing the solid component from the unburned gas generated by said imcomplete combustion section by flowing the unburned gas through said solid component removing section.
Patent CA-2040452-A1 (CA)
Title: Fluorescent lamp controlling arrangement
Inventor: SZUBA STEFAN F
IPC: G02F1/1335
Filed: 1991-04-15
Abstract: ABSTRACT: Fluorescent lamp controlling arrangement.           A method for controlling the luminescence of a fluorescent lamp in which a light sensor operates in response to light other than that from the fluorescent lamp striking it to increase the luminescence of the lamp.
Patent CA-2041278-A1 (CA)
Title: Disposable clothing shields
Inventor: KOCK LENE
IPC: A61F13/15
Filed: 1991-04-25
Abstract: ABSTRACT   In a product for protecting clothing from perspiration, it is known to have a pad or absorbent material sewn or attached to the underarm areas of the clothing. In this invention, the pad is constructed of disposable paper and plastic, pressed in layers and backed with an adhesive. The pad is embossed so adjustment in size can be obtained by simply tearing off sections of the pad. A layer of odor neutralizer or perfume may be included in the pad to reduce odor. The pad is used once and disposed of by simply pulling the adhesive backed pad from the clothing.
Patent CA-2041555-A1 (CA)
Title: High contrast photographic element including an aryl sulfonamidophenyl hydrazide containing ethyleneoxy groups
Inventor: MACHONKIN HAROLD I
IPC: G03C1/06
Filed: 1991-04-30
Abstract: ABSTRACT         Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula:                     where each R is a monovalent group comprised of at least three repeating ethyleneoxy units, n is 1 to 3, and R1 is hydrogen or a blocking group.
Patent CA-2042834-A1 (CA)
Title: Bubble or massage bath with water recirculation
Inventor: KOLLER RUDOLF
IPC: A61H33/00
Filed: 1991-05-17
Abstract: ABSTRACT OF THE DISCLOSURE        A circulating water system for a bath in which water is drawn from the tub and returned to nozzles in the tub by a pump driven by an electric motor has the water heated at least in part by passing the water through a heating jacket formed by the motor housing around the stator.
Patent CA-2042916-A1 (CA)
Title: Feeder for animals
Inventor: AKINS EDWARD A
IPC: A01K1/10
Filed: 1991-05-21
Abstract: ABSTRACT OF THE DISCLOSURE          FEEDER FOR ANIMALS     A feeder for receiving a bale confined within a cylindrical  body of the feeder comprises a cylindrical skirt and a plurality of bars upstanding from the skirt for confining animals outside of the feeder for accessing the bale within the feeder.  The skirt is manufactured from a single integral sheet of metal which is bent about parallel horizontal lines to form coplanar skirt portions and flange portions and is then curved to form into the cylindrical shape.   The upstanding bars are then simply welded to the skirt portions so that the structural strength for the feeder is provided by the cooperation between the curved and bent skirt sheet and by the vertical bars.  The design reduces the materials required in the conventional hoop members  and  reduces  the  amount  of  labour  required  for manufacture while providing equal or increased strength.
Patent CA-2044197-A1 (CA)
Inventor: NUKUI KAZUMITU
IPC: G01K17/00
Filed: 1991-06-10
Abstract: A calorimeter comprises a laminar flow type flowmeter for measuring the volume of flow of a fuel gas as a value proportional to the difference between the pressures of the laminar flow elements and a stream pipe serially connected to the laminar flow type flowmeter to create a laminar flow therethrough. The stream pipe is provided with a heating means,  a  temperature  sensing  means  for  detecting  the difference between the temperatures of the fuel's flow to and  from the  stream pipe portion heated by the heating means,  and a thermal-type flowmeter for measuring a mass flow proportional to the differential temperature sensed.          A computer unit calculates  the outflow pressure  and the volume of flow of the fuel gas in its normal state from the measured values of the absolute pressure, the differential pressure and the temperature of the fuel gas flowing into the laminar flow-type flowmeter and calculates the calorific value  of  the  fuel  gas  as  a  value  that  is  negatively proportional to the differential pressure.
Patent CA-2044724-A1 (CA)
Inventor: SANO MASAMICHI
IPC: C22B9/04
Filed: 1991-06-17
Abstract: A melt is stored in a vessel placed in a decompression vessel.  On the bottom of the vessel is arranged a bubble generator made of porous bricks, and bubbles of argon gas are introduced into the melt through this bubble generator.  Also a lower half section of a degassing member is immersed in the melt.       This degassing member has a cylindrical form with the lower end closed and the section immersed in the melt is made of a porous material permeable to gases and impermeable to melts.    With these features, a surface of molten metal can be put under reduced pressure and high content components of the melt can be removed by means of bubbling, and also solute components in the melt can be removed into bubbles of argon gas.  Also, gases in the melt and gases produced by reactions between the melt and the porous material can be sucked through a wall of the degassing member into inside thereof and removed.
Patent CA-2045150-A1 (CA)
Title: Oligomeric immunoglobulins
Inventor: SHUFORD WALT W
IPC: C07K19/00
Filed: 1990-11-06
Abstract: Novel oligomeric monoclonal antibodies with high avidity for antigen are described. The oligomers, typically of the IgG class, are secreted having two or more immunoglobulin monomers associated together to form tetravalent or hexavalent IgG molecules. The oligomers can be formed by substantially duplicating regions of the light chain, particularly the variable region. Oligomeric antibodies of the IgG isotype cross the placenta and can provide passive immunity to a fetus, which is particularly important for protecting newborns against pathogens such as group B streptococci.
Patent CA-2048692-A1 (CA)
Title: Surface functionalized and derivatized conducting polymers and method for producing same
Inventor: GUISEPPI-ELIE ANTHONY
IPC: C08F8/00
Filed: 1990-03-13
Abstract: New variants of electroactive and optoactive polymers, formed from the surface chemical modification and derivization of free-standing and substrate-supported polymer films, and processes for the production of these new variants, are disclosed. The free-standing or substrate-supported films are chemically modified at or near their surfaces to introduce hydrophilic and/or reactive functional groups, such as carboxylic acids, hydroxyls, and amines.  Oxidative and wet chemical techniques for such surface chemical modification of polymers are also disclosed. Surface derivatization of the modified polymer film is achieved through the specific attachment of bioactive, immunoactive, electroactive, and catalytic agents to the surface of the electroactive or optoactive polymer film.
Patent CA-2049688-A1 (CA)
Title: Arrangement for connecting bus bars
Inventor: GENZEL ROLF-GUNTER
IPC: H02G5/02
Filed: 1991-08-22
Abstract: Abstract Arrangement for connecting bus bars An arrangement for connecting aligned section (15, 16) of a bus bar (14) comprises connecting pieces (1)  of approximately rectangular basic  shape.  Crown-rounded contact surfaces (2, 3, 4, 5, 6, 7) are provided at the ends of the connecting pieces (1) to rest on the narrow sides of the rectangular profile of the bus bars. Two contact surfaces (4, 5; 6, 7) flanked by elevations (8) are provided on one of the sides of the connecting piece (1), while two pairs of contact surfaces (4, 5; 6, 7)  are provided on the opposite side. To connect the sections of single bus bars, the connecting pieces (1) are used in such a manner that the sections are flanked by the elevation (8), while to connect double bus bars the reversed position is provided, in which the eleva-tions (10) are situated between the parallel sections of the bus bar set.
Patent CA-2050508-A1 (CA)
Inventor: ROGER HOULE
IPC: B67D7/54
Filed: 1991-08-14
Abstract: LE -D'un dispositif, s'adaptant sur le bec d'une poigné a gasoline dans les station services , servant a l'aspiration des vapeurs de gasoline qui sous l'action du remplissage l'air s'échappe du reservoir provoquant une pollution hautement toxique pour la personne, et empêchant le liquide de s'éjecter du tuyau du reservoir lorsque le trop plein se fait,protégeant l'utilisateur de souillure de la gasoline .
Patent CA-2050725-A1 (CA)
Title: Process for the preparation of glass fiber optical waveguides with increased tensile strength
Inventor: BARTEL ULRICH
IPC: C03B37/027
Filed: 1991-09-05
Abstract: For the production of glass fiber optical waveguides with increased tensile strength, these are drawn from a glass preform with a single-layer or multi-layer of additional sheathing of a glass material, with the material of at least the outermost layer in each case having a lower coefficient of thermal expansion as compared with the layer located underneath it or with the material of the preform.  During the drawing process, the fiber is drawn from the preform in the cold state with increased tensile force.
Patent CA-2051087-A1 (CA)
Title: Automatically testing telephone lines
Inventor: HAGENSICK THOMAS E
IPC: H04M3/30
Filed: 1991-09-10
Abstract: A method of testing a telephone line including installing a test call unit at an end of the telephone line at which a customer's equipment is connected, automatically initiating a telephone line test at the module, performing the telephone line test, and transmitting the results of the line test over the telephone line.
Patent CA-2051968-A1 (CA)
Title: Cross-linked epoxy resins with non-linear optical properties
Inventor: NORDMANN JENS
IPC: G02F1/355
Filed: 1991-09-20
Abstract: ABSTRACT         The invention provides cross-linked epoxy resins with non-linear optical properties.  The epoxy resins according to the invention have the following structure:
Patent CA-2052266-A1 (CA)
Inventor: LESKO ALBERT J
IPC: A23G4/02
Filed: 1991-09-25
Abstract: A method for continuous production of a chewing gum slab in the absence of separate cooling is disclosed.  The method includes introducing chewing gum ingredients and gum base into an extruder and extrusion mixing the ingredients with  the  gum  base  over  a  distance  to  provide  a substantially homogeneous chewing gum mass.   The mass is also cooled over the distance so that a chewing gum slab is provided which  is  suitable  for rolling  and  scoring  or extruding into a rope without a separate cooling step.
Patent CA-2055312-A1 (CA)
Title: Alpha olefins functionalized polymers
Inventor: GALIMBERTI MAURIZIO
IPC: C08F210/16
Filed: 1991-11-12
Abstract: ABSTRACT          Disclosed are polymers and copolymers of CH2=CHR alpha olefins where R is hydrogen or a 1-6 carbon atoms alkyl radical, containing in the chain from 0.1 to 40% moles of monomeric units   where X is a group selected from (CH2)rCH2CH2Y        (CH2)rCH=CH2                 (CH2)r+2OCOR1 (CH2)r+2OR1          (CH2)r+2CH(COOR1)2 (CH2)r+2OH                    (CH2)r+2CH2COOH                     where r = 0 - 10, Y is a halogen atom, R1 is a hydrocarbon radical with 1-18 carbon atoms.
Patent CA-2057076-A1 (CA)
Title: Polyamides with improved gas barrier properties
Inventor: WALKER THEODORE R JR
IPC: C08J5/18
Filed: 1990-05-22
Abstract: Polyamide resins useful for forming containers having improved resistance to gas permeability comprising the reaction product of (A) a dicarboxylic acid corresponding to the structure (I), wherein X is hydrogen or unsubstituted alkyl containing 1-5 carbons and n is an integer in the range of 4 to 10, and (B) a diamine containing 5 to 16 carbon atoms.
Patent CA-2057288-A1 (CA)
Title: Trophoblast interferon
Inventor: EBBESEN PETER
IPC: C07K14/56
Filed: 1991-12-09
Abstract: ABSTRACT           Novel  interferon proteins,  produced  by  human trophoblasts or other means such as recombinant techniques, are provided.   These novel  interferon have properties indicating that they are different from known interferon, and are useful in prophylactic or therapeutic treatment of humans or other warm blooded animals, e.g. in prevention of virus transmission from infected mother to fetus during pregnancy and during labour.
Patent CA-2058755-A1 (CA)
Title: Ramp systems for assembling and disassembling highway trailers and railtrucks for intermodal transportation
Inventor: KEALEY THOMAS F
IPC: B61D47/00
Filed: 1990-06-06
Abstract: A novel ramp system is provided for use to assemble and disassemble trains of intermodal trailers supported on removable intermodal railtrucks. The ramp system has an ascending portion (64) for raising the level of the trailer frame onto an elevated portion of the ramp, locating means to align the respective coupling members (58) of a railtruck (30) and intermodal trailer in proper relationship for coupling, and a descending portion (68) for transferring the load from the highway wheel assembly of the trailer to the railtruck or vice versa. The descending portion of the ramp can include a wheel stop to locate the railtruck in an operative location for coupling beneath the trailer (10) while lowering the trailer frame on top of the railtruck.
Patent CA-2059497-A1 (CA)
Title: Spread spectrum signal receiving apparatus
Inventor: HORI KATSUYA
IPC: H04B1/707
Filed: 1992-01-16
Abstract: A spread spectrum signal receiving apparatus comprising: a radio frequency processing circuit for converting a spread spectrum signal into an intermediate frequency signal; a binary encoder for encoding the intermediate frequency signal; a pseudo-random noise code generator; a code driver for controlling the phase and the chip speed of the output of the code generator; a first multiplier for multiplying the binary signal by the output of the code generator; a numerical controlled oscillator for outputting first and second carrier signals; second and third multipliers for multiplying the output signal of the first multiplier respectively by the first and second carrier signals; first and second low-pass filters supplied with the output signals of the second and third multipliers respectively; and a microcomputer having functions to produce signals for controlling the numerical controlled oscillator, and functions to produce signals for controlling the code driver.
Patent CA-2060310-A1 (CA)
Title: Digital speech coder with vector excitation source having improved speech quality
Inventor: GERSON IRA A
IPC: G10L19/12
Filed: 1990-05-02
Abstract: In a vector excitation source digital speech coder utilizing vector excitation, candidate excitation sources (111, 121) are con-sidered independent of certain pitch parameters. Once a particular excitation source has been selected, the excluded pitch par-ameter may then be optimized, resulting in an overall improvement in speech quality.