baber/WOPTO huggingface dataset:
Patent CA-2034773-A1 (CA)
Title: Solid fuel downdraft furnace
Inventor: SVENSSON ERIK
IPC: F23M11/02
Filed: 1991-01-23
Abstract: The invention concerns a furnace for solid fuels in which the combustion is effected downwards in order to allow firing down to very low output effect.  In accordance with the invention the furnace has a fuel storage vessel (1) which also serves as a gas collection vessel and which during operation is pressurized to a slight atmospheric overpressure.  The bottom part of the storage vessel is formed with sloping walls (4) the lower edges of which form a burner opening and above which opening is provided a draft-air supply means which extends closely alongside the sloping bottom along the portions thereof positioned closest to the burner opening.
Patent CA-2036091-A1 (CA)
Title: Pharmaceutical composition
Inventor: GERICKE ROLF
IPC: A61K31/47
Filed: 1991-02-11
Abstract: Merck Patent Gesellschaft mit beschrankter Haftung D a r m s t a d t ABSTRACT         The invention relates to a pharmaceutical com-position containing bisoprolol and/or one of its physio-logically acceptable salts and a potassium channel activator.
Patent CA-2037263-A1 (CA)
Title: Liquid painting instrument
Inventor: NAKAZIMA NOBUYUKI
IPC: A45D34/04
Filed: 1991-02-27
Abstract: LIQUID PAINTING INSTRUMENT                           Abstract A liquid painting instrument comprising a front shaft, a valve member, a liquid reservoir and a check valve(s), the liquid reservoir being made of a soft material and accommodated in a chamber of  the main shaft communicating with  the atmosphere said liquid reservoir opening to a chamber of the main shaft wherein the valve member is provided, and the check valve(s) being provided between the painting piece and the liquid reservoir.
Patent CA-2038058-A1 (CA)
Title: Drip cleaner attachment with solid cleaning concentrate
Inventor: BERFIELD ROBERT C
IPC: A47L11/30
Filed: 1991-03-12
Abstract: The disclosure concerns a drip cleaning attachment for use in association with a suction cleaner.  A housing with a suction nozzle also has supported, at its rear, a liquid drip nozzle which drips liquid toward the surface to be cleaned through a liquid distribution screen.  A non-liquid, and particularly a solid rod, cleaning concentrate is supported on the screen.  Some of the liquid hitting the screen migrates to the cleaning concentrate rod, dissolves some of it and the concentrate drips to the surface to be cleaned.  A scrub brush may be disposed on the attachment for scrubbing the surface.
Patent CA-2038625-A1 (CA)
Title: Fluoride-containing dentifrice
Inventor: BIANCHI ALAN L
IPC: A61K8/34
Filed: 1991-03-19
Abstract: Abstract of the Disclosure A novel aqueous-based, neutral pH gel dentifrice compo-sition containing fluoride and optionally containing hydrated silica is provided.  The dentifrice composition contains about 15% to   about   25%   by   weight   of   a   polyoxyethylene polyoxypropylene block copolymer gelling agent,  about 5% to 15% by weight of a humectant,  about 0.1% to about 4.0% by weight of a surfactant, about 0.1% to about 2% of a fluoride source, and an effective amount of a flavor ingredient and an effective amount of a buffering agent whereby the pH of the final  composition  is  essentially  neutral.    The  dentifrice exhibits unique rheological properties making it particularly suitable for use with electromechanical tooth brushing devices of the type having independently moving tufts.
Patent CA-2038720-A1 (CA)
Title: Arrester
Inventor: KAWAMURA TAKESHI
IPC: H01C7/12
Filed: 1991-03-20
Abstract: ABSTRACT OF DISCLOSURE        An arrester in which the foregoing problems are solved, and the arrester is characterized in that in an arrester storing a current limiting element in a pressure-proof housing, the pressure-proof housing is composed of a conductive material and coupled with upper electrode member.   And, a self arc-extinguishing arrester which is characterized in that the current limiting element and upper and lower electrode members are housed and fixed in a conductive pressure-proof housing opened at its lower portion through a suspension structure composed of a suspension rod, the outside and inside of the housing being covered with an insulating portion and filled with an insulator respectively, so that, upon occurrence of an internal arc due to a short-circuit fault or the like, the lower electrode member breaks the insulator in the vicinity of an opening portion of the conductive pressure-proof housing by an energy due to the arc so as to electrically connect the conductive pressure-proof housing to a part of the lower electrode member.
Patent CA-2039942-A1 (CA)
Inventor: CHACIN U JESUS E
IPC: F04B47/02
Filed: 1991-04-08
Abstract: The present invention is drawn to an inlet valve assembly for a subsurface sucker rod operated reciprocating piston pump and, more particularly an inlet valve assembly which is locked in its closed position when the pump is in its unanchored, non-pumping position within the production tube of a deep well.          When the subsurface piston pump is anchored within the production tube of the deep well of the inlet valve assembly is freely movable between open and close positions upon reciprocation of the piston.
Patent CA-2040832-A1 (CA)
IPC: B65D/
Filed: 1991-04-19
Abstract: WIDE STANCE FOOTED BOTTLE                 Abstract of the Disclosure A blow-molded bottle of thermoplastic resin has a hollow body with a generally cylindrical side wall rotationally symmetric about a longitudinal axis of the bottle and an integral base merging with the side wall.   The base is defined by an outer surface having a plurality of arcuately extending downward projections separated from each other by hemispherical segments extending from the cylindrical side wall to the longitudinal axis of the bottle.  Each of the arcuately extending downward projections has a first inclined portion contiguous to the longitudinal axis, a second inclined portion situated radially outside of, and axially displaced downwardly from, the first inclined portion, a generally perpendicular ring segment having an upper edge united with the first inclined portion by a curved portion having a radius of between about 0.015 in. and 0.060 in., and a lower edge united with the second inclined portion.  A radially outwardly and upwardly curved portion defining the axially lower most extent of each downward projection has an inner edge united with the second inclined portion.  An inclined outer wall portion having an upper edge united with the cylindrical side wall has a lower edge united with the radially outwardly and upwardly curved portion.  Slanted radial facets merge the sides of the arcuately extending downward projections with the hemispherical segments extending from the cylindrical side wall to the longitudinal axis of the bottle.
Patent CA-2041987-A1 (CA)
Inventor: NAOKI GORO
IPC: G11B7/085
Filed: 1991-05-07
Abstract: An optical disk drive of the type having a fixed optical unit (13) having a light transmitting hole (19) from which a laser beam is emitted, and a movable head (14) having a light receiving hole (20) from which the laser beam is received, wherein the respective outer edges of the light emitting and receiving holes (19, 20) are surrounded by a pair of annular projections (21).  The annular projections (21) are engageable with each other to provide a seal there-between when the head (14) is displaced toward the fixed optical unit (13).  The annular projections (21) are prefer-ably made of a cushioning material in which instance they also serve as a cushioning or shock-absorbing member.                        (Fig. 1)
Patent CA-2043889-A1 (CA)
Title: Computer controlled display system
Inventor: HUBER TERRENCE D
IPC: G09G5/00
Filed: 1991-06-05
Abstract: IMPROVED COMPUTER CONTROLLED DISPLAY SYSTEM                Abstract of the Disclosure A computer controlled large area display system comprises a plurality of arrays of pixel elements,  the pixel elements switchable between first and second states in response to row and column control signals.  The plural-ity of arrays of pixel elements are coupled via a serial interface.  The display system further comprises a control computer for outputting display data,  and decoder means coupled to the control computer via a serial interface, the decoder means for converting the display data to the row and column control signals.
Patent CA-2045208-A1 (CA)
Title: Inhibition of coloration of human serum albumin
Inventor: OHMURA TAKAO
IPC: C12N15/81
Filed: 1991-06-21
Abstract: A method of inhibiting the coloration of human serum albumin expressed by using the gene manipulation technology which method comprises separating coloring contaminants from said human serum albumin before said coloring contaminants bind to the human serum albumin.
Patent CA-2049660-A1 (CA)
Title: Electroless plating of materials having electrophilic polarity
Inventor: TAKAGI KANEYUKI
IPC: H05K3/38
Filed: 1991-08-22
Abstract: A B S T R A C T An improved electroless plating method of a material having the nucleophilic polarity, wherein a solution of a polymer containing a nucleophilic substituent on its carbon chain is applied onto the surface to be plated of an article constituted with a material having the electrophilic polarity,  to thereby  form a thin film of the polymer thereon, and thereafter the electroless plating is effected.
Patent CA-2050357-A1 (CA)
Inventor: EMERY CHARLES L
IPC: H05B6/80
Filed: 1991-08-30
Abstract: There is provided a new and useful apparatus comprising a microwave generator, and a parabolic wave guide associated with the generator for focusing microwave energy over a predetermined area.   Multiple such generators are used in an apparatus for treating materials by the application of microwaves.
Patent CA-2050903-A1 (CA)
Title: Board games
Inventor: BENNETT PAUL F
IPC: A63F3/02
Filed: 1990-01-14
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a board game typically including counters, playing pieces, pawns or the like which are placed on the board and moved across the board in accordance with the play of the game wherein the game board is comprised of at least two sections, one of which has an aperture and the sections being arranged to be part of a game where during the course of play a player or players move pieces on a first section of the board in a direction which may lead to the aperture so that the piece rests on a second section of the playing board and the first section can be moved clear of the second section in order to reveal a second board on which play can take place in the subsequent playing of the game.
Patent CA-2050957-A1 (CA)
Title: Control system
Inventor: BARTHOLOMEW GARY
IPC: G06F3/033
Filed: 1991-09-09
Abstract: Abstract of the Disclosure The instant invention discloses a control system by which an  operator  controls  equipment  by  selectively  changing  the operation condition thereof  and which facilitates  interaction between the control system and the operator.  The control system comprises a device for receiving at least one input signal from the equipment being controlled which is a function of at least one operating condition thereof.   The system also includes a touch sensitive display screen for representing the control system to the operator  and  at  least  one  object  represented  on  said  touch sensitive display screen for displaying the at least one operating condition in response to receipt of the input signal.  The object is a graphic representation of a mechanical control device used on control panels and, thus, is a familiar sight to the unskilled worker, who is typically ill at ease with computers.  Devices for manipulating the object are also included and cause a change in the value thereof on the display screen to indicate a change in the operation condition.   The manipulation devices are also graphic representations of control devices from control panels which also facilitates worker interaction with the system.  The system also includes a device for generating an output signal to be transmitted to the equipment which is a function of the change in value of the object caused by the manipulation device.
Patent CA-2053474-A1 (CA)
Title: Plant transformation method using agrobacterium species adhered to microprojectiles
Inventor: BIDNEY DENNIS
IPC: C12N5/10
Filed: 1991-10-15
Abstract: Bacteria of the species Agrobacterium are applied to particles which are used in a typical particle gun in a manner which retains their viability after the dry-down process involved in microparticle bombardment.  When plant materials are bombarded with particles coated with the bacteria, high rates of stable transformation are achieved.
Patent CA-2053707-A1 (CA)
Title: Cheese packaging laminate
Inventor: MUELLER WALTER B
IPC: B32B3/24
Filed: 1991-10-18
Abstract: ABSTRACT OF THE DISCLOSURE         A multilayer laminate comprises a machinable film with perforations defined therein, preferably of a propylene homopolymer or copolymer, and a second component film bonded to one side of the machinable film, such laminate providing the combined properties of machinability, high gas permeabili-ty and low moisture transmission while maintaining a substan-tially planar configuration.   2/901004.1/OLDFLDR
Patent CA-2054380-A1 (CA)
Inventor: FARR JAMES B
IPC: G05D9/12
Filed: 1991-10-28
Abstract: ABSTRACT    The present invention is a liquid level control system for selectively activating and deactivating a pump according to the liquid level indicated by capacitive sensors.  Activating circuitry starts the pump motor when both upper and lower sensors indicate the presence of liquid. The pump motor continues operation until both of the capacitive sensors indicate the absence of liquid, in which case the pump is shut off.  The circuitry of the present invention operates reliably over a wide range of operating conditions.
Patent CA-2054527-A1 (CA)
Title: Method of producing galvanized steel sheets having a good workability
Inventor: KONISHI MOTOYUKI
IPC: C23C2/06
Filed: 1991-10-30
Abstract: Abstract of the Disclosure In a method of producing galvanized steel sheets having a good workability through preliminary treatment step for hot dip galvanizing, hot dip galvanizing treatment step and post treatment step for hot dip galvanizing or further paint finishing treatment step, a surface of the resulting galvanized layer is subjected to a brushing treatment with a metal wire brush at the post treatment step.
Patent CA-2056379-A1 (CA)
Title: Biocidal methods and compositions for recirculating water systems
Inventor: KUECHLER THOMAS C
IPC: C02F1/50
Filed: 1990-06-04
Abstract: Improved biocidal composition and method for controlling biofouling and microorganism population levels in recirculating water systems such as cooling towers, swimming pools or spas is disclosed and claimed. The composition comprises a hypochlorite donor and a bromide ion donor in proportions selected to maintain a mole ratio of the sum of all bromine containing species to the sum o all hypohalite species in the recirculating water of about 0.2 to about 20. The method comprises introducing into the recirculating water a mixture or combination of a hypochlorite donor and a bromide ion donor in an amount sufficient to maintain a ratio of the sum of all bromine containing species to the sum of all species in the recirculating water in the range of about 0.2 to about 20.      In addition, a bromine volatilization suppressant may be introduced into the recirculating water to inhibit loss or bromide ion through volatilization of bromine containing species formed by reaction of the hypochlorite donor and the bromide ion donor. One or more scale inhibitors and compacting aids may also be added.
Patent CA-2057949-A1 (CA)
Title: Display device
Inventor: KILLINGER ERICH
IPC: G09F9/30
Filed: 1991-12-18
Abstract: The invention relates to a display device having a multiplicity of display points, in which each display point is formed by the front-side end of an illuminable optical fibre. The number of the display points for a large-area display that is viewed from a great distance can be substantially reduced by arranging to fix in a display panel in front of each end of an optical fibre a light collector which has a round and larger cross-section than the cross-section of the optical fibre, forms a section convexly curved with a prescribed radius where it faces the end of the optical fibre, and is provided where it is averted from the end of the optical fibre with a rotating phase which is at a prescribed angle to the central axis of the display point, and by arranging that the light collector projects on the display panel with the section formed by the phase, and that the front side of the light collector averted from the end of the optical fibre is roughened.
Patent CA-2058080-A1 (CA)
Title: Composite stator construction for downhole drilling motors
Inventor: FORREST JOHN
IPC: F01C1/10
Filed: 1991-12-19
Abstract: A composite stator construction for a downhole drilling motor  which  provides  improved  sealing  and  distortion properties.     The    elastomer   which    maintains    the sealing/pumping action of the motor is applied in a uniform thickness to a rigid metallic form.   In the stator,  the rigid former has the basic configuration of the stator and is mounted within the casing of the motor.  In the rotor, the elastomer can be applied directly to a metallic rotor core.  The basic geometry is provided by the metallic former thereby reduces  distortion of  the  lobes  under  increased torsional forces.
Patent CA-2058404-A1 (CA)
Title: Precipitated silica
Inventor: CHOJNOWSKI MARIAN
IPC: C09D17/00
Filed: 1991-12-23
Abstract: ABSTRACT OF THE DISCLOSURE      A precipitated silica paste is produced by dispersion of precipitated silica in silicone oil.  In the hydrophobicization of precipitated silicas, the precipitated silica paste is used in suspension as the hydrophobicizing agent.  The product is spray-dried, conditioned and ground.
Patent CA-2065340-A1 (CA)
Title: Process for expanding a digital signal
Inventor: GUILLON JEAN-CLAUDE
IPC: H04N5/44
Filed: 1990-08-16
Abstract: Hannover, Oct. 3, 1989 PTL -Wo/wi    H 88/008 ABSTRACT   1.       Method for the expansion of a digital signal 2.1.     For magnifying the dimensions in space of pictures a method is known in which the increasing of the amplitude of the vertical deflection is combined with a digital magnification of the signal in the horizontal direction.   2.2.     For the modification of the dimensions in space of pictures a)      the data are written into a memory without prior expansion.  The expansion of the picture data is performed during the reading-out of the memory. b)      The expansion of the data is performed during the writing of the data into the picture memory.          The reproduction is performed by reading-out line by line.   2.3.      Improved picture reproduction method 3.       Fig. 4 .
Patent CA-2065359-A1 (CA)
Inventor: HASEBE NOBUYASU
IPC: F23G7/12
Filed: 1991-06-27
Abstract: The present invention relates to a process for incinerating burnable wastes, such as plastics, accompanied by treating the gases generated through incinerating burnable wastes, characterized in that the energy of an explosive is used to initiate the combustion of the said burnable wastes, such as plastics embedded in the land, thereby simultaneously forming combustion chambers for primary combustion, supplying fuels (1) and an oxidizing gas (2) into said chambers whereby incineration is carried out while discharging gases (3) generated through incineration to above the surface of the land, subjecting the said gases generated through incineration to oxidation in the presence of a catalyst (4), whereby the toxic gases such as CO, COCl 2, and dioxin contained therein are converted into CO2 H2O, HCl, and SO x, which are then generally treated.
Patent CA-2065397-A1 (CA)
Title: Cable system incorporating highly linear optical modulator
Inventor: RASKIN DONALD
IPC: H04B10/155
Filed: 1990-10-22
Abstract: A system incorporating a pair of Mach-Zehnder modulators (164, 166) for performing amplitude modulation of an optical carrier is disclosed. Each of the modulators is designed to suppress even order distortion products and develop third order distortion products of opposite sign and equal magnitude. The outputs of the two modulators are combined in a directional coupler (155) resulting in substantially suppressing second through fourth order distortion products.
Patent CA-2065455-A1 (CA)
Title: Guideway
Inventor: SCHWEBBACH PAUL
IPC: B65H45/107
Filed: 1991-07-12
Abstract: Abstract In order to achieve simplicity of operation and construction in an arrangement for driving a guide channel, a shaft is arranged between an eccentric and guide channel, and a driven connection is arranged on one side edge thereof.
Patent CA-2069123-A1 (CA)
Inventor: VANHECKE CLAUDE
IPC: H03G3/02
Filed: 1992-05-21
Abstract: : Dispositif amplificateur programmable. La présente invention se rapporte à un dispositif amplificateur programmable de gain compris entre 2n et 2n-1 par pas de 2P avec P < n ; n étant le nombre de bits de la commande de gain, comprenant : - plusieurs étages à deux valeurs de gain sélectionnées entre elles grâce à un bit de commande ; - au moins deux étages identiques comportant un bit de commande différent. Chaque étage ayant un gain maximum inférieur à 2n-1. Application notamment au domaine spatial. FIGURE A PUBLIER : Fig.1
Patent CA-2071781-A1 (CA)
Title: Photographic copying apparatus
Inventor: MUELLER KURT
IPC: G03B27/46
Filed: 1992-06-22
Abstract: PHOTOGRAPHIC COPYING APPARATUS            ABSTRACT   A photographic copy apparatus for processing of photographic copy material housed in mobile cassettes, at least two cassettes being combined on either side of an exposure station in a block so that the cassettes on an inlet side are approximately opposite cassette openings of cassettes on an outlet side. The cassette openings of the cassettes in their working position are aligned with the transport path for the copy material and additional cassettes behind those in their working position are aligned with a parallel to the transport path. Transport devices are provided above the cassettes combined in blocks for their exchange.
Patent CA-2075432-A1 (CA)
Title: Well packer
Inventor: HEAD PHILIP F
IPC: E21B33/1295
Filed: 1992-08-06
Abstract: ABSTRACT            WELL PACKER            An inflatable well packer includes several annular layers 1,3,5,7 of material, consisting of a series of oriented fibres 27 encapsulated in an elastomeric resin.  The inner and outer circumferential surfaces of the well packer each carry a protective layer 9,11 of material effective to protect the elastomeric resin.  Each layer 9,11 is deposited on the well packer in a folded configuration, such that unfolding of the layers enables inflation of the well packer.            A method of making the well packer, using a moulding technique is also described.            Figure 1 to accompany abstract
Patent CA-2078403-A1 (CA)
Title: Tire sidewall composition containing silica having low ph
Inventor: SEGATTA THOMAS J
IPC: C08K5/18
Filed: 1992-09-16
Abstract: Abstract of the Disclosure TIRE Sidewall COMPOSITION CONTAINING SILICA HAVING LOW pH      The present invention relates to a pneumatic tire sidewall and to elastomeric compositions useful therefor.  The elastomeric compositions are comprised of:     (a)  natural rubber, polybutadiene, or mixtures thereof;     (b)  from about 1.0 to 5.0 phr of a precipitated silica filler having a BET surface area of between 100 and 250 square meters per gram and a pH of from 4.0 to 6.5;     (c)  from about 1.5 to 10.0 phr of an antidegradant selected from the group consisting of amines, phenolics and mixtures thereof.