baber/WOPTO huggingface dataset:
Patent CA-2053923-A1 (CA)
Inventor: ROMANO PAUL
IPC: G01F1/84
Filed: 1990-05-23
Abstract: Apparatus and accompany-ing methods for use therein for a Coriolis mass flow rate meter (5) which is substantially immune to noise, and more particularly, to such a meter that is substantially unaffected by noise that occurs at substantially any frequency differ-ent from a fundamental frequency at which the flow tube(s) (130, 130') in the meter vibrates. Specifically, the meter (5) relies on measuring mass flow rate by determining the phase difference that occurs be-tween real and imaginary compo-nents of the discrete fourier trans-form (DFT) of both the left and right velocity sensor waveforms evaluated at the fundamental fre-quency at which the flow tubes vi-brate. The fundamental frequency is located, during an initialization operation, by providing a power spectrum, determined through use of the DFT, of one of the sensor signals and then selecting that frequency at which the magnitude of the power spec-trum reaches a maximum value. In addition, the frequency at which both velocity sensor signals are sampled is readjusted in re-sponse to any change in the phase of one of the velocity sensor signals, as transformed using the DFT, in order to assure that the sampling frequency always remains substantially equal to a pre-defined integer multiple of the fundamental frequency. Further-more, the meter, through use of the numerical value of any such phase change, also provides a density indication which is also substantially immune to such noise.
Patent CA-2055028-A1 (CA)
Title: Method of stabilizing a combustion process
Inventor: CAPEK KAREL
IPC: F23G7/06
Filed: 1991-11-06
Abstract: Method of stabilizing a combustion process A b s t r a c t In a combustion process, liquid or gaseous residues having little or no calorific value are supplied to a flame in the main combustion chamber in addition to the fuel gas and the air for combustion. Stabilization of the flame and hence a reduction in the emission of nitrogen oxides is achieved by preheating the fuel gas and introducing it into the main combustion chamber at a temperature above its ignition temperature.            (Fig.1) Le A 25 914
Patent CA-2056439-A1 (CA)
Title: Method for the protection of plants against pathogens
Inventor: GERARD PETER J
IPC: C12N15/80
Filed: 1991-03-27
Abstract: A method for the protection of plants against pathogens, wherein a polynucleotide sequence comprising at least a sequence of a pathogenic avirulence gene (E) encoding a specific elicitor protein molecule (e) or a portion thereof is introduced into the genome of a plant containing a corresponding resistance gene (R), in which genes (E) and (R) are regulated in such a manner that simultaneous expression of said genes only occurs at the site of infection and said simultaneous expression can be induced by a broad range of pathogens. A polynucleotide sequence comprising at least a sequence of an avirulence gene (E) from a plant pathogen encoding a specific elicitor protein molecule (e) or a portion thereof, and a plant promoter (P) that can be induced by a broad range of pathogens and which permits expression at the site of infection only. Plant obtainable by use of said method and plant comprising said polynucleotide sequence.
Patent CA-2062325-A1 (CA)
Title: Process for the bleaching of cellulose in aliphatic monocarbonic acids
Inventor: BERG ALEX
IPC: D21C3/00
Filed: 1992-03-05
Abstract: Abstract In the disclosed two stage process for the delignification of cellulose containing raw materials, the extraction is carried out with aqueous acetic acid at a temperature of 140 to 230°C and a pressure of 3 to 30 bar with a subsequent extraction or washing.  The obtained acetic acid wet cellulose is subsequently treated with an ozone containing gas.  The use of halogenous additives or bleaching agents is no longer required. The process provides for a residual lignin content of less than 1% per weight, even if the yielded cellulose was extracted from coniferous wood which is hard to delignify.
Patent CA-2063459-A1 (CA)
Title: Solvent resistant linear polycarbonate compositions
Inventor: KRABBENHOFT HERMAN O
IPC: C08L69/00
Filed: 1992-03-19
Abstract: ABSTRACT       Polymeric  compositions  are  described  which  result  from blending a mixture comprising:  (A) at least one amorphous polycar-bonate; (B) at least one linear polycarbonate oligomer containing hydroquinone carbonate structural units;  and  (C) at least one polycarbonate formation catalyst.    The polymeric compositions have particular application in the preparation  of  shaped  articles   for  use  in  environments characterized by the presence of solvents, solvent vapors, and/or potential for fire conditions.  Methods for increasing the solvent and flammability resistance of amorphous polycarbonates are also described.
Patent CA-2063460-A1 (CA)
Title: Solvent resistant polycarbonate blends
Inventor: KRABBENHOFT HERMAN O
IPC: C08L69/00
Filed: 1992-03-19
Abstract: Blended polymer compositions are described which comprise: (A) at least one amorphous polycarbonate; and (B) at least one linear polycarbonate oligomer containing hydroquinone carbonate structural units.     The blended polymer compositions have particular application in the preparation of shaped articles for use in environments characterized by the presence of solvents, solvent vapors, and/or potential for fire conditions.  Methods for increasing the solvent and flammability resistance of amorphous polycarbonates are also described.
Patent CA-2065318-A1 (CA)
Title: Latching system
Inventor: STILLWAGON WOODROW C
IPC: E05B65/02
Filed: 1990-08-30
Abstract: A Latching System comprises a notched post assembly (11), a post gripping assembly (12) and a handle assembly (60), and, in preferred embodiments, a lock assembly (59) associated with the handle assembly, wherein the notched post assembly (11) is comprised of an elongated post (14) formed at one end with at least two opposing, axially extending rows of notches or teeth (17) and alternately disposed smooth surfaces (18) and the post gripping assembly (12) comprises a channel (23) for accepting the notched end of the post and comprises movable cam elements (27, 28) which cooperate with the notches of the post to effect the primary latching function of the system; and wherein the unlatching of the post from the channel is accomplished by rotating the post to disengage the notches and the cam elements. A pick-resisting improvement to the cylinder lock assembly includes facial piece defined with a plurality of knobs protruding partly into the key entry passage of the lock assembly.
Patent CA-2065557-A1 (CA)
Title: Roller-skating doll
Inventor: LLORENS D JAIME F
IPC: A63H11/18
Filed: 1992-04-08
Abstract: A B S T R A C T           ROLLER-SKATING DOLL    The roller-skating doll  in question includes a --mechanism worked  by an electric motor.  The mechanism is based  on gears  which give  revolving movement  to a drum   provided  with  a   winding  ring-shaped  groove containing two  pins belonging to  levers that  work the legs. These  levers are  linked to  another two levers, articulated in the middle, which convey movement to the arms. There  is also an  eccentric on the  drum's outlet shaft in  order  to convey  movement  to the  head.  The winding  groove in  the drum ensures  that the movements of  the legs,  arms  and head  are  synchronized and  in time. In addition, there is a device that causes the --mechanism to  stop for a moment and then to start again, as well as a clutch which  allows the motor to idle   in the event  of the doll falling over, being blocked by an obstacle, etc. Figure 1.
Patent CA-2069620-A1 (CA)
Title: Method and apparatus for preparation of solutions from concentrates
Inventor: SENNINGER MARK
IPC: A61M1/14
Filed: 1991-09-27
Abstract: An apparatus (10) for proportioning solutions from at least first and second constituent solutions connected to separate inlet ports (26) of the apparatus (10) first detects which constituent solution is being supplied to which port and then properly proportions the finished solution from the constituent solutions irrespective of which constituent solution is connected to which inlet port.
Patent CA-2070462-A1 (CA)
Inventor: PIERFITTE MICHEL
IPC: G01T1/166
Filed: 1992-06-04
Abstract: The invention relates to medical imaging devices which use gamma rays. It consists, in a device in which a gamma camera is suspended from a framework (102) by a rotating base (103), of an arm (205) and two axles (104, 207) allowing two rotational movements (X, Y) of the detector head (101) of the gamma camera with respect to the rotating base, and in providing a stirrup (209) connected to the arm by a third axle (208) allowing a third rotational movement (Z) of this gamma camera. It makes it possible to facilitate the relative positioning of the gamma camera and of the patient being examined. 
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Patent CA-2070751-A1 (CA)
Title: Proteins
Inventor: FITTON JOHN E
IPC: A61K47/48
Filed: 1992-07-09
Abstract: A B S T R A C T            Proteins Ribotoxins, such as restrictocin, mitogillin and alpha-sarcin which do not contain a cysteine for linkage to antibodies for immunotoxin production need to be modified for such linkage without compromising biological activity.  Protein analogues of such native ribotoxins are provided in which both the analogue and the native ribotoxin can cleave only a single phosphodiester bond of 28S rRNA in a 60S ribosomal subunit and in which the analogue comprises only one cysteine available from covalent linkage to a partner, such as an antibody, which cysteine is not present in the native ribotoxin. Especially preferred analogues are restrictocin Cys 13, Cys 82, Cys 106 and Cys 110 and restrictocin Cys 150 - Gly15.  Corresponding DNA sequences, vectors, host cells, immunotoxins and pharmaceutical compositions are also claimed.
Patent CA-2071038-A1 (CA)
Inventor: GABARA THADDEUS J
IPC: H03K19/00
Filed: 1992-06-11
Abstract: DIGITALLY CONTROLLED ELEMENT SIZING Abstract Effective control of impedance values in integrated circuit applications is achieved with an integrated circuit transistor whose size is digitally controlled. The digitally controlled size is achieved, for example, with a parallel interconnection of MOS transistors. In one application, the digitally controlled transistor serves as a controlled impedance connected to an output terminal of an integrated circuit. In that application, a number of transistors are enabled with control signals, and the collection of enabled transistors is responsive to the input signal that normally is applied to a conventional transistor. In another application, where the digitally controlled transistor serves as a controlled impedance at the input of a circuit, only the control signals that enable transistors and thereby determine the effective developed impedance are employed. In still another application, the digital control of the transistor's size is employed to controlthe speed or power consumption of the effective transistor. Such control is exercised to erase the manufacturing variability of the integrated circuit. Alternatively, such control is exercised as part of a feedback control of the operational characteristics of the entire circuit. In the feedback control application, the digital signals that control the transistor's size are obtainedfrom an assessment of the circuit's operation. In the manufacturing variability control application, the digital signals that control the transistor's size are obtained from a measure of the integrated circuit's parameters relative to a reference element.
Patent CA-2071842-A1 (CA)
Title: Flower stem and head support apparatus
Inventor: COURT EDAWRD H
IPC: A01G5/06
Filed: 1990-10-25
Abstract: An apparatus for extending the useful life of cut flowers and promoting a maximum bloom by supporting the head of the flower and preventing the head from drooping. Embodiments of the present invention include tubular structures (10) for gripping the outer surface of the flower stem below the flower receptacle. A slot or slit (20) is formed along the length of the tubular member (10). The slot (20) widens to allow the stem to pass therethrough to the interior of the tubular member (10) where the stem is snugly gripped. Also included is a cup-like structure (14) adapted to hold and support the flower receptacle. The embodiments of the present invention may be economically fabricated and easily installed on cut flowers.
Patent CA-2072117-A1 (CA)
Title: Form of carbon
Inventor: HUFFMAN DONALD R
IPC: C01B31/02
Filed: 1991-08-21
Abstract: C60 and C70 carbon atom compounds are prepared by evaporating graphite in an inert quenching gas. The vapor of carbon is collected and is selectively extracted with an organic non-polar solvent.
Patent CA-2072244-A1 (CA)
Title: Bone replacement material with fgf
Inventor: NIES BERTHOLD
IPC: A61K38/18
Filed: 1992-06-24
Abstract: Abstract The  invention  relates  to  a  bone  replacement material which comprises one or more polypeptides having the biological action of fibroblast growth factors in a porous matrix. The healing-in properties correspond to those of autologous bone transplantation.
Patent CA-2073749-A1 (CA)
Title: High viscosity activated charcoal slurry
Inventor: DIX KIM
IPC: A62D5/00
Filed: 1992-07-13
Abstract: ABSTRACT OF THE DISCLOSURE         An activated charcoal composition suitable for printing or coating onto stretchable or non-stretchable fabric comprises charcoal particles, SMA 1440H in the range from 1 to 6 parts per hundred charcoal (pphC) as a wetting agent, high viscosity carboxymethyl cellulose in the range from 0.5 to 7 pphC and acrylic latex in the range from 10 to 30 pphC.  A corresponding method of making the composition comprises adding the wetting agent and charcoal to enough water to wet the charcoal particles; high shear mixing the water and charcoal particles to totally wet the charcoal particles: and mixing in the high viscosity carboxymethyl cellulose and acrylic latex.          In a flame retardant version flame retardants in the range from 15 to 65 pphC are added and the lower end of the acrylic latex range is increased to 15 pphC.
Patent CA-2077151-A1 (CA)
Title: Cleaning compositions
Inventor: MILNE NEAL J
IPC: C11D7/24
Filed: 1992-08-28
Abstract: ABSTRACT        CLEANING COMPOSITION        A cleaning composition comprising one or more aliphatic compounds and one or more lower alcohols having about 8 carbon atoms. preferably 2-ethyl -hexanol; for use in industrial cleaning applications, eg in the electronics industry.
Patent CA-2077609-A1 (CA)
Title: Abrasive tooth whitening dentifrice of improved stability
Inventor: NATHOO SALIM A
IPC: A61K8/24
Filed: 1992-09-04
Abstract: Abrasive dentifrice compositions containing an oxygen liberating whitening compound which is stable with respect to oxygen level and exhibits heightened and rapid whitening of teeth and stain removal which comprises a combination of a dicalcium phosphate compound and a metal ion free peroxide compound.
Patent CA-2078415-A1 (CA)
Inventor: BETTARINI FRANCO
IPC: C07D249/12
Filed: 1992-09-16
Abstract: UXA(THIA)DIAZOL- AND TRIAZOL-ONES(THIONE5) HAVING A MITICIDE AND          INSECTICIDE ACTIVITY.          Abstract A description follows of oxa(thia)diazo1- and triazo1-ones(thiones), with a miticide and insecticide activity, having the genera1 formula                          (I) wherein; Y = O, S; Z = O, S, NCH3, one of the two substituents P and Q is an ortho-substituted phenyl and the other a substituted benzyl.
Patent CA-2078520-A1 (CA)
Title: Trimetazidine derivatives, process for preparing same and pharmaceutical compositions containing same
Inventor: REGNIER GILBERT
IPC: A61K31/495
Filed: 1992-09-17
Abstract: New trimetazidine derivatives which can be used as medicaments and which correspond to the formula: 
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 in which R1, R2, R3, R4, R5, R6, R7, R8, X and A are as defined in the description. 
<??>The new derivatives and their physiologically tolerable salts can be used in therapeutics especially in the treatment of ischaemic pathologies and of peripheral vascular pathology.
Patent CA-2078658-A1 (CA)
Title: Golf club swing training device
Inventor: SILVERA RICHARD
IPC: A63B69/36
Filed: 1991-03-18
Abstract: A golf club swing training device (10) is mounted to the shaft (67) of a golf club (69) to enable a user to improve muscle coordination and follow through during swinging of the golf club (69).  The training device (10) is in the form of a tube (16) which is clamped in a parallel spaced apart relationship to the shaft (67).  A weight (14) is disposed within the tube (16) in axially slidable engagement. A spring (22) biases the weight (14) towards the first or upper end (18) of the tube (16) when attached to the golf club (69). Upon the user swinging the golf club (69), centrifugal force urges the weight (14) toward the second or lower end (20) of the tube (16) so that the user feels increased torque during the swing. The weight (14) may further be fixed in a selected position within the tube (16) by a retainer pin (46, 90) received through the tube (16) and engaging the weight (14) therein to provide a fixed weight during the swing.
Patent CA-2080050-A1 (CA)
Inventor: NORIMATSU HIDEHIKO
IPC: H03L3/00
Filed: 1992-10-07
Abstract: A power supply control circuit is responsive to a control signal for intermittently supplying voltage from a built-in battery to a frequency synthesizer so as to prevent charge depletion of the built-in battery.   In order that a charge on a capacitor of an active LPF, inserted between the built-in battery and the frequency synthesizer to constitute the power  supply control circuit,  is not released toward the synthesizer side during suspension of voltage supply to the synthesizer, a switching means responsive to the control signal is added.  This power supply control circuit advances the rise of the supply voltage, and accordingly the stabilization of the output frequency of the synthesizer,  on resumption of the voltage supply.
Patent CA-2085256-A1 (CA)
Title: Dual cure casting resin
Inventor: LINDEN GARY L
IPC: C08G18/32
Filed: 1991-05-31
Abstract: The use of a monomer as the solvent in both components of a urethane polymerization system eliminates the need for the expenditure of much energy to remove solvent from the cured resin.  The exotherm of the urethane cure supplies the heat for the activation of a relatively thermally stable free radical catalyst which then catalyzes the curing of the monomer.  The two compo-nent system is stable in storage.
Patent CA-2087656-A1 (CA)
Title: New compounds
Inventor: PETTERSEN ERIK O
IPC: A61K31/19
Filed: 1993-01-20
Abstract: Abstract New compounds having the general formula I                          wherein L may be H or D;             Y may be CN or   wherein A may be H, D, alkyl with 1-4 carbon atoms, OR wherein R is X or alkyl with 1-4 carbon atoms, or CR1R2R3 wherein R1, R2 and R3 are the same or different and are H or alkyl with 1-4 carbon atoms; Z is H, D, Y or alkyl with 1-4 C-atoms, halogen, nitro, amino, monoalkyl amino or dialkyl amino wherein the alkyl groups have 1-4 C atoms, or OR wherein R may be H or alkyl with 1-4 C atoms, or CR4R5R6 wherein R4  R5 and R6 may be the same or different and may be H or F; X1 and X2 may be the same or different and may be OR, NR1R2 or SR, wherein R, R1 and R2 may be the same or different and may be alkyl having 1-22 carbon atoms which may be branched or straight chained and/or may be further substituted; or X1 and X2 may together with the carbon atom to which they are bound form a cyclic acetal, thioacetal, dithiane, aminal, oxazolidine or thiazolidine; and pharmaceutically acceptable salts thereof.           The compounds are useful as anti-cancer agents and as agents useful for the treatment of illnesses arising due to an abnormally elevated cell-proliferation.
Patent CA-2088170-A1 (CA)
Title: Electric system for electric vehicle
Inventor: KINOSHITA SHIGENORI
IPC: B60L11/18
Filed: 1993-01-27
Abstract: ABSTRACT OF THE DISCLOSURE   An electric system for an electric vehicle enabling a secondary battery to be charged easily without using a large capacity and bulky charging system.  The system can maintain integrity of power on a distribution network during charging.  When charging the secondary battery, a switch connecting an inverter to an AC motor is opened, and then, the AC voltage from an external distribution network is supplied to the AC side of the inverter.  The inverter rectifies the AC voltage to a DC voltage under the control of a control circuit so that the secondary battery is charged by the DC voltage.  In another example, the windings of the AC motor may be connected between the distribution network and the inverter by the switching operation of a three-pole contactor so that the windings function as AC reactors.
Patent CA-2091175-A1 (CA)
Title: Pressure vessel
Inventor: HOWARD EDWARD G JR
IPC: C01C1/04
Filed: 1991-09-10
Abstract: This invention relates to vessel (10) for high pressure and optionally high temperature processes. More specifically it relates to a pressure vessel having a non-threaded plug (12), said vessel useful as a chemical reactor and for polymer processing at high pressures and optionally elevated temperatures.
Patent CA-2096321-A1 (CA)
Title: Coupling sleeve for connecting thin-walled pipe ends
Inventor: MEINIG MANFRED
IPC: F16L33/04
Filed: 1993-05-14
Abstract: ABSTRACT     A coupling sleeve for connecting thin-walled pipe ends with a circularly bent sheet-metal strip (10) and a sealing strip (30) lining  the  inside  thereof,  and  with  a  turnbuckle  (18) for tightening the coupling sleeve on the pipe ends to be connected.          A loosely attached spacing member (32) located approximately at the axial middle of the coupling sleeve in the region of the turnbuckle (18) projects through the sealing strip (30) into the interior of the coupling sleeve.  The end (36) of the spacing member (32) that projects inward in the untightened condition is pressed outward, during the tightening process, by the increasingly overlapping ends (14, 16) of the sheet-metal strip (10), in such a way that it is forced into the elastic inside surface of the sealing strip (30) or into a slit thereof.
Patent CA-2097133-A1 (CA)
Title: Chain including roller sealing arrangement
Inventor: CHEESMAN ROBERT R
IPC: B01D33/333
Filed: 1993-05-27
Abstract: ABSTRACT OF THE DISCLOSURE    A chain equipped with rollers and including roller joint sealing arrangements each comprising the provision of complementary sets of annular grooves in the end faces of a roller and in the inwardly facing surfaces of the sidebars of the roller chain.  An annular seal member is loosely seated in each complementary set of grooves to form a labyrinth type seal to prevent lubricant efflux from the roller joint and contaminant influx into the roller joint to improve the wear characteristics of the roller joint.
Patent CA-2097891-A1 (CA)
Title: Tool method of well clean out
Inventor: SWALM LORNE A
IPC: E21B37/00
Filed: 1993-06-07
Abstract: ABSTRACT OF THE DISCLOSURE          In a method for evacuating sand and other solids from vertical wellbores,  it is known to comprise a tool attached to a wireline which is lowered into a wellbore through the string of production tubing without the removal of the wellhead.  In combination with removing the stuffing box, polished rod, rods and bottom hole pump, this method comprises lowering a tool on a wireline through the string of production tubing; jetting evacuation  fluid  through  the  production  tubing  and consequently through the tool causing sand and other solids to be carried upward through the annulus created between the production tubing and the production casing.