baber/WOPTO huggingface dataset:
Patent CA-2062894-A1 (CA)
Inventor: WILLIAMS DENNIS A
IPC: C09K8/74
Filed: 1992-03-12
Abstract: A composition and a method for treating wells having metal tubulars therein are disclosed, which composition comprises;            (a)  an aqueous acid solution;          (b)  first   metal  ions   selected   from  the   group consisting of Sb,  Bi, Cu (cuprous), and  mixtures thereof;          (c)  second   metal  ions   selected  from   the  group consisting of Ca, Mg, Al, Zn, Zr, Sn, and mixtures thereof, the mole ratio of the first metal ions to the second metal ions ranging from 1:10 to 10:1;          (d)  one or more quaternary aromatic ammonium compounds complexed with each of the  first and second metal ions, the concentration of the quaternary ammonium compound and  the metal  ions complexed  therewith ranges from 0.1 to 10 weight % of the aqueous acid solution, and (e)  an effective  amount of  a surfactant  to disperse the complexed metal ions in the acid solution.
Patent CA-2063464-A1 (CA)
Title: Foamable resin composition and a thermoplastic foamable pattern and metal casting manufacturing method using said composition
Inventor: KATO YOSHIYUKU
IPC: B22C7/02
Filed: 1992-03-19
Abstract: Disclosed are a foamable resin composition which comprises a copolymer with a weight-average molecular weight of 150,000 - 350,000 produced by copolymerization of a monomer mixture of 55 - 85% by weight of,styrene and 45 -15% by weight of a methacrylic acid ester represented by general formula (I) CH2=C (CH3)COOR ....... (I) (wherein R represents a C1-4 alkyl group) and, having impregnated therein, 10% by weight or less of a foaming agent relative to said monomer mixture, a thermoplastic foamable pattern which is constituted by heating, foaming and molding of a foamable resin composition as claimed in Claim 1, a metal casting manufacturing method which comprises a stage wherein a thermoplastic foamable pattern as claimed in Claim 9 is especially surrounded by refractory material and a stage wherein molten metal is poured into said pattern in order to eliminate said pattern and, as the result of solidification of said metal, form a casting as a reproduction of said pattern, and a metal casting manufacturing method which comprises a stage wherein a thermoplastic foamable pattern as claimed in Claim 9 is especially surrounded by refractory material, a stage wherein said pattern is eliminated to form a space, a stage wherein molten metal is poured into said space and a stage wherein a casting is formed as a reproduction of said pattern by solidification of said metal.
Patent CA-2064476-A1 (CA)
Inventor: LEANDER KURT
IPC: A61K31/34
Filed: 1990-07-17
Abstract: The invention refers to new pharmaceutical preparations foe the treatment of psoriasis and condyloma acuminata, and containing podophyllotoxin in combination with a liquid triglyceride.
Patent CA-2070985-A1 (CA)
Title: Gaming device
Inventor: LAATIKAINEN JOUKO
IPC: G07F17/34
Filed: 1991-01-02
Abstract: The invention relates to a gaming device comprising a gaming machine, a payout machinery controlled by the gaming machine and driven by a direct voltage motor, the operating time of which machinery proportional to the size of the payouts is controlled by a control signal (4) produced by the gaming machine, and means for feeding the motor with drive current depending on the control signal (4) of the gaming machine. To improve the reliability of the operation of the payout machinery, the control signal (4) is a digital code of at least 2 bits and the means for feeding the motor with current comprise a control register (5), a shift register (7), and a logic (8) for time control to reset the shift register output (Q) to zero after the control time set in the logic (8) for time control has expired, whereby the shift register (7) output (Q) comprises the drive current for the motor of the payout machinery either directly or through a current amplifier (11).
Patent CA-2072618-A1 (CA)
Inventor: JAHNKE RICHARD L
IPC: G02C7/02
Filed: 1990-10-30
Abstract: A colored contact lens having a very natural appearance is disclosed. The inventive lens has a non-opaque pupil section and iris section that is at least partially opaque and comprised of two portions. A first portion, generally located on the outside of the iris section, has a first shade. A second portion, generally located on the inside of the iris section has a second shade. A jagged border separates the two portions. A third iris section and second jagged border are also disclosed. In some embodiments por-tions of the iris section may be non-opaque.
Patent CA-2073085-A1 (CA)
Title: Method for identifying non-essential genes of the human cytomegalovirus genome and for screening inhibitors of human cytomegalovirus
Inventor: JONES THOMAS R
IPC: C12Q1/68
Filed: 1992-07-03
Abstract: 31,617-00 METHODS FOR IDENTIFYING NON-ESSENTIAL GENES OF THE HUMAN CYTOMEGALOVIRUS GENOME AND FOR SCREENING FOR INHIBITORS OF HUMAN CYTOMEGALOVIRUS     Abstract of the Disclosure This invention relates to a method for identifying non-essential genes of the human cytomegalovirus (HCMV) genome through the insertion of a .beta.-glucuronidase marker gene into a specified HCMV gene, such that, if the product of the HCMV gene is not expressed, the gene is identified as non-essential for replication of HCMV.   This invention also relates  to  a method of screening  for compounds which inhibit HCMV by the insertion of the .beta.-glucuronidase marker gene into a HCMV gene,  such that the enzyme marker is expressed and cleaves a conjugate chemical substrate in an assay system to yield a detectable fluorescing product or to result  in a color change.   This  invention further provides the gene responsible in HCMV early cytopathic effect.
Patent CA-2074295-A1 (CA)
Inventor: NAGAMI MASAAKI
IPC: F01N1/06
Filed: 1992-07-21
Abstract: An automatic sound controlling apparatus including a first adaptive filtering means that forms a compensating signal for canceling a stationary sound, a signal producing means that produces a predetermined shape signal based on a timing signal with respect to a sound, a second adaptive filtering means that forms a compensating signal for canceling a fluctuating sound by the predetermined shape signal , whereby in the case that a sound period changes sharply, an output signal of the second adaptive filtering means is output in stead of the first adaptive filtering means.
Patent CA-2077564-A1 (CA)
Title: Electrical connector for conductors
Inventor: LERCHS ERIK
IPC: H01R4/62
Filed: 1992-09-04
Abstract: ABSTRACT            "Electrical connector for conductors"      The body  (20)  of the connector has at least two electrical contact surfaces (21, 22), each in contact with part of the circumference of the conductor (4), located on opposite sides of a plane running through the longitudinal axis of the conductor and essentially perpendicular to the force exerted by the mechanical means.     The electrical connector according to the invention is suitable in particular for multicore connectors consisting of various layers of cores lying one above the other.            Fig. 6
Patent CA-2079069-A1 (CA)
Inventor: GILLIS MARK E
IPC: H04W52/02
Filed: 1992-09-24
Abstract: A cordless telephone arranged for operation in a frequency hopping system conserves battery power in a handset unit when this unit is located remote from an associated base unit and in a standby state. While in this standby state, the handset unit resides in a low power monitoring mode and monitors a channel pseudo-randomly selected from a plurality of available channels in the frequencyhopping band for receipt of an initialization signal from the associated base unit. The base unit similarly monitors this selected one of the channels for receipt of this initialization signal from the handset unit. Should ongoing communications between the base unit and the handset unit be inadvertently interrupted, the cordless telephone quickly re-establishes communications in the frequency hopping system through aninitialization process executed by both the handset unit and the base unit.
Patent CA-2083056-A1 (CA)
Title: Imidazopyridine paf antagonists
Inventor: COOPER KELVIN
IPC: A61P37/08
Filed: 1991-07-04
Abstract: Compounds of formula (I), wherein R1, R2 and R3 are each H  or methyl, R4 is hydrogen, halo, C1-C4 alkyl, or C1-C4 alkoxy and n is an integer of from 1 to 3 are PAF antagonists of utility in the treatment of allergic and inflammatory conditions.
Patent CA-2084415-A1 (CA)
Title: Method for forging rapidly solidified magnesium base metal alloy billet
Inventor: RAYBOULD DEREK
IPC: C22C1/04
Filed: 1991-04-15
Abstract: A magnesium base metal component is forged from a billet by subjecting the billet to a forging process using multiple steps in a closed-die or an open-die forging and a forging temperature ranging from 200 ·C to 300 ·C. The billet is compacted from a rapidly solidified magnesium based alloy defined by the formula MgbalAlaZnbXc, wherein X is at least one element selected from the group consisting of manganese, cerium, neodymium, praseodymium, and yttrium, ''a'' ranges from about 0 to 15 atom percent, ''b'' ranges from about 0 to 4 atom percent, ''c'' ranges from about 0.2 to 3 atom percent, the balance being magnesium and incidental impurities, with the proviso that the sum of aluminum and zinc present ranges from about 2 to 15 atom percent. The alloy has a uniform microstructure comprised of a fine grain size ranging from 0.2-1.0 µm together with precipitates of magnesium and aluminum containing intermetallic phases of a size less than 0.1 µm.  Upon being forged  the component exhibits, in combination, excellent mechanical strength and ductility, making it especially suited for aerospace structural applications.
Patent CA-2086359-A1 (CA)
Title: Substituted indolinones useful as herbicidal agents
Inventor: CONDON MICHAEL E
IPC: A01N43/653
Filed: 1992-12-29
Abstract: 31, 792-00 SUBSTITUTED INDOLINONES USEFUL AS HERBICIDAL AGENTS     ABSTRACT OF THE INVENTION Substituted indolinone compounds which are effective in the control of undesirable plant species are described. Also described are a method for the herbicidal use of the compounds and a method for their preparation.
Patent CA-2088094-A1 (CA)
Title: Sheet feeding and separating apparatus with an improved entrance guide
Inventor: PARKER FRANK E
IPC: B65H3/46
Filed: 1993-01-26
Abstract: A sheet feeding and separating apparatus includes a multiple piece entrance guide located between a stack from which sheets are to be fed and a retard nip. The guide includes a polycarbonate base member, a radiused high friction urethane retard member and a flexible polycarbonate or polyester film deflector member. The urethane is ground to a radius on the leading edge to promote the feeding of down curled sheets, shingling of sheets and the breaking up of slugs prior to entering the retard nip. The deflector member assists in feeding down curled sheets.
Patent CA-2088712-A1 (CA)
Inventor: MARCHAND JEAN-LUC
IPC: B21D1/05
Filed: 1993-02-03
Abstract: SOCIETE DITE : SOLLAC                  Planeuse pour tôles.       ABREGE DU CONTENU TECHNIQUE DE L'INVENTION         Cette planeuse comporte des rouleaux planeurs inférieurs et supérieurs (14B), d'axes (X) sensiblement parallèles,  les rouleaux planeurs inférieurs coopérant avec la surface inférieure d'une tôle et les rouleaux planeurs  supérieurs  (14B)  coopérant  avec  la  surface supérieure de la tôle, les rouleaux inférieurs et supé-rieurs étant décalés dans la direction longitudinale de défilement de la tôle, la tôle défilant entre les rou-leaux en subissant longitudinalement une succession de flexions alternatives. Au moins deux rouleaux planeurs (14B) successifs,  l'un supérieur et l'autre inférieur, sont recouverts d'une enveloppe (22) gonflable dont la surface de contact (22E) avec la tôle est bombée dans la direction transversale par rapport à la direction de défilement de cette tôle.            Fig. 2
Patent CA-2098004-A1 (CA)
Title: Device for Suspending a Working Cage
Inventor: FUKUTOMI OSAMU
IPC: B66C23/26
Filed: 1993-06-08
Abstract: A  device for suspending a working cage includes an arm,  a swivel arm mounted rotatably horizontally to the end portion of the arm, a first sheave mounted rotatably horizontally  to  the arm at a location behind  the  end portion to which the swivel arm is mounted, and a second sheave  mounted rotatably horizontally to the swivel arm in  front of the center of rotation of the  swivel  arm.          The  first and second sheaves have the same diameter and are  formed with at least two vertically  arranged  wire rope engaging grooves.  At least two wire ropes fed from a  winding device and attached to a working cage through these sheaves cross each other between the first  sheave and the second sheave.   The distance between the center of rotation of the swivel arm and the center of rotation of  the  first sheave is determined to be equal  to  the distance  between  the center of rotation of the  swivel arm  and  the center of rotaion of  the  second  sheave.          By  this  arrangement,   entwining  of  wire ropes  and inclination  of  the  working cage due to  imbalance  in length of respective wire ropes can be prevented.
Patent CA-2098183-A1 (CA)
Title: Method for the purification of intact, correctly-folded insulin-like growth factor-1
Inventor: HOLTZ GREGORY C
IPC: C12R1/84
Filed: 1992-01-15
Abstract: Method for the recovery and purification of intact, correctly-folded, monomeric insulin-like growth factor-1 peptide from large volumes of 1GF-1-containing medium are described, comprising a series of adsorption-desorption steps employing a combination of cation exchange and hydrophobic interaction adsorbents. Product IGF-1 peptide is highly purified and suitable for use in a variety of clinical applications.
Patent CA-2099719-A1 (CA)
Inventor: GOOSSEN JAMES A
IPC: G06T11/20
Filed: 1993-06-29
Abstract: A high speed and memory efficient system and method for rendering Bézier curves. The system utilizes a hybrid forward differencing function representing the Bézier curve defined by the Bézier control points and renders the curve with a small number of straight line segments. The system renders the curve in a manner that results in the same Bézier control points that are calculated using the prior art recursive subdivision techniques and rejects line segment approximations that would not be derived from recursive subdivision. The system can start at either end of a Bézier curve and will render the same approximation. The method is readily implemented on a computer and is applicable to Bézier curves of any order.
Patent CA-2103603-A1 (CA)
Title: Binders for coating compositions with a long shelf life
Inventor: FLIEDNER CHRISTINE
IPC: C09D7/45
Filed: 1993-08-09
Abstract: Abstract A binder for coating compositions having a long shelf life is disclosed.  The binder comprises a silicic ester, a solvent, a curing agent and an antisettling agent, wherein the solvent comprises n-butyl acetate.  The binder according to the invention has a flash point of above 21°C, higher than conventional binders based on silicic esters.  The binder, which has good rheological properties, is particularly useful for zinc dust-containing coating compositions.
Patent CA-2105317-A1 (CA)
Title: Parking lot structure
Inventor: CHOW JACK W
IPC: E04H6/10
Filed: 1993-09-01
Abstract: A parking structure for vehicles comprising a plurality of substantially level parking floors having a plurality of parking spaces on each floor. A ramp system is provided for access between floors comprising ramp sections extending between adjacent floors arranged to define a continuous path from the bottom to the top floor within the parking structure that does not involve travelling among the parking spaces on each floor. The end of one ramp section is spaced apart from the start of the next ramp section at each floor to define an entrance to and an exit from the ramp system.
Patent CA-2105607-A1 (CA)
Title: Shock detector and distress beacon for an aircraft incorporating such a detector
Inventor: DUSART GERARD
IPC: G08B1/08
Filed: 1993-09-07
Abstract: In order that safety systems, such as distress beacon emitters carried on board an aircraft, can be triggered both in the case of a very short, violent shock or impact and during a longer, but less violent shock or impact, a shock or impact detector is proposed, which takes into account both the amplitude and the dutation of a possible shock or impact. This detector comprises an electromagnetic transducer (50), whose coil supplies a pulse signal having an amplitude and duration proportional to the amplitude and to the duration of the shock. An integrator (80) makes it possible to obtain an integrated signal, whose amplitude is proportional both to the amplitude and the duration of the shock. A cariparator (82) then makes it possible to control safety systems, if said integrated sig-nal exceeds a preferably regulatable threshold.
Patent CA-2107182-A1 (CA)
Title: Bearing retainer ring
Inventor: KULCZYCKI STANLEY
IPC: B60B27/00
Filed: 1993-09-28
Abstract: ABSTRACT      A wheel hub assembly for a non-driven axle including a hub, a bearing retainer ring and a bearing.  The bearing retainer ring is secured to the hub by engagement of the wheel mounting studs with the hub.  A portion of the bearing retainer ring directly engages and positively provides an axial retention load on the bearing.  The resulting structure is a compact and light weight wheel   hub  assembly  having   simplified,   cost   efficient construction.
Patent CA-2109792-A1 (CA)
Title: Apparatus and method for providing ignition to a turbine engine
Inventor: FRUS JOHN
IPC: F02P3/05
Filed: 1989-11-02
Abstract: A unipolar ignition of the invention provides a current waveform at the ignitor plug which initially rises relatively slowly, followed by a transition to a fast rising current which quickly peaks and thereafter slowly dissipates.  Such a current waveform provides an initially hotter and longer lasting spark which does not harm the ignitor plug of the system or shorten its life expectancy.  Neither does the spark create stress on the solid state circuitry which delivers the energy to the ignitor plug.  To provide the foregoing spark and current characteristics, an inductor having a saturable core is in series with the ignitor plug, and it provides an initially high inductance which limits the rate of current rise at the plug as energy is transferred from an energy storage device to the plug.  As the current through the inductor increases, its core begins to saturate and the effective inductance begins to decrease, allowing the current to rise more quickly.  As energy is transferred to the ignitor plug, the increasing saturation, decreasing inductance and increasing current complement one another, causing the rate of current rise to increase quickly to a high value desirable for ignition.  Related features of the invention provide for easy diagnostics of the spark and for timing an ignition sequence and providing a repetition rate which aids in a successful ignition.
Patent CA-2110492-A1 (CA)
Title: Welding process for connecting a winding wire of a coil to a terminal and a metal sleeve for use in this process
Inventor: FIEDLER ARTHUR
IPC: H01F41/10
Filed: 1992-06-01
Abstract: In a welding process, a metal cap (4) with a closed end (4a) is placed on a terminal (2) with the end of a winding (3) wound upon it and welded from its closed end to the terminal (2) and the end of the winding (3) under a protective gas (8). The cap is preferably made from a sheet-metal section by bending.
Patent CA-2110562-A1 (CA)
Title: Core box vent construction
Inventor: ROWE MELVIN L
IPC: B22C7/06
Filed: 1993-12-02
Abstract: Abstract A novel core box vent useful in core making, comprising a porous cylinder of sintered ceramic materials, the pores of such cylinder being less than will allow intrusion of the grain size of sand to be introduced to the core box.   A method of making cores using the above vent, comprising: providing mateable core box sections with blow tubes permitting introduction of an air fluidized sand mixture into the interior of the box sections and with one or more ceramic core box vents in an exhaust side of the mating core box sections to permit egress of air used to fluidize the sand mixture, the vents having a labyrinth of passages or pores smaller in diameter at least than the average grain size of the sand in the mixture; blowing a sand and resin mixture into the interior of the mated core box sections, such resin laden sand grains being prevented from egress from the mated core box sections, such resin being curable to polyurethane by chemical reaction; blowing a catalyst curing gas through the mixture via said blow tubes; and purging the mixture with air.
Patent CA-2110902-A1 (CA)
Title: Elongated housing of large cross-section and its fabrication method
Inventor: MATIERE MARCEL
IPC: E02F5/10
Filed: 1992-12-23
Abstract: The invention relates to an elongated housing (1) intended to withstand an internal pressure which may exceed 10 bars and forming a tubular sealed space (A) having a truncated cross-section, comprising a lower portion formed of a rigid concrete slab (2) resting on the ground and an upper portion (3) consisting of a thin metal wall shaped like a curved vault extending between two side extremities (31, 31') parallel to the longitudinal axis and each connected to the slab (2) by means of a longitudinal connection part connected tangentially to the side extremity (31, 31') of the vault (3). According to the invention, the upper face (22) of the slab (2) has a width substantially equal to the spacing between the two side extremities (31, 31') of the curved vault (3) and each connection part is comprised of a flat plate (4, 4') which extends in the prolongation of the vault (3) and is applied from the outside against the corresponding side face (23, 23') of the slab (2), each plate (4,4') being associated with support means (5, 42) capable of opposing the slipping of said plate (4, 4') along the corresponding side face (23, 23') of the slab (2) caused by forces (15) due to internal pressure and to the separation of said plates (4, 4') as a result of external forces (13).
Patent CA-2113707-A1 (CA)
Title: Dehydration of mixtures
Inventor: LEWIN ROBERT G
IPC: C25B15/08
Filed: 1994-01-18
Abstract: Abstract A process for the treatment of a hydrated mixture of a salt which comprises an inorganic fluoride and hydrogen fluoride to remove water from the mixture wherein the salt mixture contains an excess of hydrogen fluoride, which process comprises forming a liquid phase of the said mixture by melting the salt therein and feeding an inert gas through the liquid phase of the mixtures.
Patent CA-2114366-A1 (CA)
Title: Grain treatment
Inventor: WOLFE JAMES
IPC: B02B1/02
Filed: 1994-01-27
Abstract: A method and an apparatus are disclosed for treating agricultural crops, for example, cereals, oil seeds and forage crops. The treatment takes the form of the application of ozone to the crop to be treated. This may be done in conjunction with aeration or drying of the crop using conventional aeration and drying equipment in which ozone is added to the aerating or drying air.
Patent CA-2117654-A1 (CA)
Title: Liquid center thread wound golf ball
Inventor: YAMADA MIKIO
IPC: A63B37/00
Filed: 1994-09-02
Abstract: Disclosed is a thread wound golf ball comprising a liquid center composed of a rubber bag containing a liquid, a rubber thread layer provided on the outside of the liquid center and a cover for covering the rubber thread layer, wherein a moment of inertia measured at 23°C of the golf ball is 75 to 80 g~cm2 and a rate of increase of a moment of inertia measured at -30°C to that measured at 23°C is within 2%.