baber/WOPTO huggingface dataset:
Patent CA-1198430-A (CA)
Inventor: WELLS JAMES E
IPC: C07B61/00
Filed: 1982-03-31
Granted: 1985-12-24
Abstract: ABSTRACT         Strontium diorthophosphate is employed as catalyst for acid catalyzed organic condensation reac-tions.  High conversion and exceptionally high selec-tivity are obtained by use of strontium diorthophos-phate in cyclization reactions such as in the conversion of hydroxyethylpiperazine to triethylenediamine.
Patent CA-1194939-A (CA)
Inventor: TOW JIMMY
IPC: H04Q1/453
Filed: 1982-04-14
Granted: 1985-10-08
Abstract: ABSTRACT MULTIFREQUENCY RECEIVER       In a multifrequency receiver, a threshold level (VTH) supplied to a group of threshold comparators (105-1 through 105-N) is controllably adjustable by a variable threshold generation circuit (104) in response to received multifrequency signals.  As the envelope of the received multifrequency signal experiences a positive amplitude transition, the threshold level is increased at a fast rate (fast attack).  Also, as the envelope of the received multifrequency signal exhibits a negative amplitude transition, the threshold level is decreased at a much slower rate (slow release).
Patent CA-1187819-A (CA)
Inventor: NATTRASS PETER J
IPC: B65D88/16
Filed: 1982-04-20
Granted: 1985-05-28
Abstract: END WALL CLOSURE FOR BULK MATERIAL TRANSPORT BAG     Abstract of the Disclosure A flat reusable fill/discharge closure for the end wall (bottom or top) of a cloth bag for transporting bulk materials comprises a flexible tube folded back into itself to form a long inner fill/discharge tube and a short outer closure tube having a length less than the radius of an opening in the bag end wall;  the tube fold is sewn into the periphery of the end wall opening of the bag with the closure and fill/discharge tubes projecting outwardly.  A flat closure is effected by tying the fill/discharge tube closed, stuffing it into the bag interior, and then closing the closure tube by a drawstring mounted in its outer end.
Patent CA-1171547-A (CA)
Inventor: KUECKER WARD A
IPC: G06F17/21
Filed: 1982-05-07
Granted: 1984-07-24
Abstract: MIXED PITCH DISPLAY               ABSTRACT OF THE INVENTION      Operator keystrokes are processed in a text processor system  to  put  characters  and  symbols  on  a  fixed  pitch display screen without limitation as to other size charac-ters or symbols on the screen.  Keystroke data is processed under  the control of programs stored  in a random access memory.  For a mixed pitch display, the random access memory of the system is structured to include a text storage buffer and  a  display  control  block  both  interconnected  to  an applications program and a display access method program. Data is stored in the text storage buffer in an unformatted configuration in a mixed pitch arrangement and the programs evaluate the data to display characters and symbols with correct character pitch.   The programs also draw a scale line on the screen to provide character information to the operator.  After running the display access method program in accordance with application program commands, a refresh buffer provides display signals to visually present by means of the display screen characters at an identified position in a mixed pitch format.
Patent CA-1202274-A (CA)
Inventor: ANDREASSEN KNUT A
IPC: C25B13/00
Filed: 1982-06-15
Granted: 1986-03-25
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention relates to a new type of diaphragm for use in electrolytic cells for the production of hydrogen and oxygen which consists essentially of fluorocarbon polymers which have been oxidized to improve their wettability.  The present invention provides a new and improved diaphragm wherein the fluorocarbon polymers are present in the form of monofilaments, only the surface of the monofilaments is oxidized and the monofilaments are woven into a fabric.  In the dry state, the gas permeability of the diaphragm is from 50 to 1000 1? dm -2 ? min -1 when the pressure differential is 200 Pa.
Patent CA-1178454-A (CA)
Inventor: HANSON RICHARD A
IPC: G01L1/14
Filed: 1982-06-16
Granted: 1984-11-27
Abstract: FORCE TRANSDUCER FLEXURE WITH CONDUCTORS ON SURFACES IN THE NEUTRAL BENDING PLANE                      Abstract A flexure in a force transducer, as an inertial guidance accelerometer, for securing a force sensitive element to a mounting base includes one or more flexure sections having one or more recessed surfaces which are substantially coincident with the neutral bending plane of the flexure.  Electrically conductive coating on the recessed surfaces provide electrical connections to components located on the force sensitive element.  The conductive coatings on or near the neutral bending plane of the flexure sections minimizes bending moments caused by stresses set up between the conductive coatings and the flexure which may in turn lead to bias errors.  At the same time, the flexure configuration provides for the desired strength and spring rate for the force sensitive element.
Patent CA-1251721-A (CA)
Inventor: RIAS JEAN-CLAUDE
IPC: B65B53/00
Filed: 1982-07-27
Granted: 1989-03-28
Abstract: Le procédé selon l'invention consiste à superposer une pluralité de panneaux, à garnir la pile ainsi réalisée d'au moins une housse de matière plastique rétractable, à soumettre la pile à une première compression normalement à sa grande face, à provoquer la rétraction de la housse sur la pile comprimée pour obtenir un colis, à superposer suivant leur épaisseur une pluralité de colis identiques de panneaux comprimés, à appliquer coantre chacune des faces d'extrémité de la pile de colis ainsi réalisée, un élément rigide plan, à soumettre ladite pile à une seconde compression, normalement aux éléments plans et à réunir à l'aide de moyens d'assemblage, la pile de colis ainsi comprimés. L'invention s'applique au conditionnement de panneaux en matériaux compressibles.
Patent CA-1183475-A (CA)
Title: High methionine content pichia pastoris yeasts
Inventor: SHAY LUCAS K
IPC: C12N1/32
Filed: 1982-08-06
Granted: 1985-03-05
Abstract: Abstract of the Disclosure Mutant yeasts of the strain Pichia pastoris have been developed which contain relatively high levels of methionine. These high methionine content Pichia pastoris mutants grow on an oxygenated hydrocarbon such as methanol, to produce improved amino acid balance single-cell protein product eliminating or reducing the need supplement single-cell protein with methionine when used as food supplements.
Patent CA-1168879-A (CA)
Inventor: MAINS ARTHUR H
IPC: F02B39/00
Filed: 1982-08-17
Granted: 1984-06-12
Abstract: ABSTRACT           A turbocharger construction of the divided turbine housing type.  To prevent failure of the divider wall due to thermally induced stresses, the divider wall is separate from the housing and means are provided to enable at least the major portion of the divider wall to move radially with respect to the housing.
Patent CA-1168633-A (CA)
Inventor: KNICKERBOCKER MICHAEL G
IPC: B65D83/14
Filed: 1982-09-13
Granted: 1984-06-05
Abstract: VALVE ASSEMBLY WITH INTEGRAL PLASTIC SPRING         ABSTRACT OF THE DISCLOSURE         A  valve assembly  for  use  with an  aerosol  container having  an integral plastic  spring  acting between  the valve stem  and  the valve  body.  A problem in the  art has been the production of low cost reliable valves for aerosol containers.  The solution presented by this invention is to eliminate the use of a separate spring by providing a plurality of resilient legs extending from either the valve stem base or the valve body.  The valve body is disposed within the aerosol container adjacent a sealing gasket having a central aperture for receiving a valve stem extending therethrough.  The valve stem has a valve stem sealing base for movement within an internal body cavity of the valve body to seal the valve stem when the vase engages the sealing gasket and for enabling fluid flow when the base is displaced from the sealing gasket.  The invention incorporates a plurality of resilient legs extending from the valve stem base for co-operation with an inclined surface either being a tapered or curved surface extending within the valve body to bias the stem sealer into engagement with the sealing gasket.         File No. PAT6156
Patent CA-1194220-A (CA)
Inventor: BARANOFF-ROSSINE DIMITRI
IPC: G11B5/86
Filed: 1982-10-27
Granted: 1985-09-24
Abstract: IN THE CANADIAN PATENT AND TRADEMARK OFFICE            PATENT APPLICATION entitled:  Method for identifying a sound recording and duplicating installation using said method.            Inventor :  Dimitri BARANOFF-ROSSINE            Applicant : Société SCOME-FRANCE               ABSTRACT OF THE DISCLOSURE                  In an installation comprising a master assembly for reading the sound information signals and the end-of-program sequence signals recorded on a master tape, and at least one slave assembly to record a second time the said read out signals, the slave assembly comprises circuits for detecting and regenerating end-of-sequence signals, which circuits are connected to the output of the said recording amplifier, digital coding circuits by derivation from a pilot frequency for producing a coded auxiliary digital signal, means to modify the digital coding at each new detection of end-of-sequence signals and an adder circuit to add the coded auxiliary digital signal with the sound information signal before re-recording the latter.                 The coded auxiliary signal enables to identify the duplicated sound recording.
Patent CA-1177637-A (CA)
Inventor: TIESZEN DALE O
IPC: C08L33/26
Filed: 1982-11-24
Granted: 1984-11-13
Abstract: Abstract of the Disclosure Polyamide  and  polyacrylamide  are  useful  as  mold  corrosion inhibitors when incorporated into a poly(arylene sulfide).
Patent CA-1177735-A (CA)
Inventor: CLARK LELAND C JR
IPC: C12M1/40
Filed: 1983-02-02
Granted: 1984-11-13
Abstract: METHOD OF POLAROGRAPHIC ANALYSIS OF LACTIC ACID AND LACTATE     A method of measuring lactic acid or lactate and derivatives thereof in liquids which is extremely versatile and is suitable for use in a number of areas such as the rapid measurement of lactic acid in whole blood, the ratio of lactic acid to pyruvic acid in whole blood, in-vivo measurement of lactic acid and the study of living lactic acid-producing cells.  The acid or lactate is measured by reacting the lactic acid with lactic oxidase to produce pyruvate and H202.  The H202 is then measured polarographically.  The current produced is directly proportional to the lactate level.  Preferably, the lactic oxidase is trapped between two semi-permeable membranes.          One membrane is placed in contact with an electrolyte at the tip of an electrode and the second membrane contacts the liquid being tested.
Patent CA-1190756-A (CA)
Inventor: COLE JOHN G
IPC: F25C3/04
Filed: 1983-02-11
Granted: 1985-07-23
Abstract: ABSTRACT    An improved snow-making nozzle for producing snow from a mixture of compressed air and water comprises a structure permitting less compressed air to be used in producing a moisture laden spray of small uniformly sized aeriated water particles which have sufficient velocity to assure that they freeze in the ambient air before hitting the ground.  The invention has internal means defining a longitudinally extending air passageway with a cylindrical end adapted to mate to a source of compressed air and having an adapter portion which alters the cylindrical shape of the passageway to a rectangular cross section of a throat portion having the ratio of the longer side to the shorter side of at least 10 to 1.  The top and bottom walls of the throat portion form a convergent-divergent nozzle with the throat portion having an arcuate shape with a radius along the longer rectangular dimension.  Nozzle ports are provided at the throat section to inject uniform streams of water into the exiting air, the endmost ports having their axes emanating from approximately the same center as that for the radius of curvature of the throat itself.
Patent CA-1191911-A (CA)
Inventor: DEVRIES ADRIAN J
IPC: H03H9/145
Filed: 1983-03-16
Granted: 1985-08-13
Abstract: ABSTRACT OF THE DISCLOSURE    A compensation scheme is disclosed which avoids the require-ment of high alignment accuracy, and thus reduces the production cost of a surface acoustic wave filter, by employing a compensa-ting transducer system which is arranged with its fingers paral-lel to those of the receiving transducer.  The requirement of receiver sensitivity at the trap frequencies is nevertheless achieved by using a very narrow compensating beam width.  The narrowness of the compensating beam also allows it to pass directly through a multi-strip coupler.  The degree of compensa-tion achieved is controlled by aiming the compensating beam at a small region of the apodized receiving transducer located at the extremity of the major lobe;  by restricting the aperture of the compensating transducer system; and by trimming the printed cir-cuit capacitor which couples the compensating transducer system to the electrical input signal.  The degree of compensation achieved is made to differ at the upper and lower trap fre-quencies by using a compound compensating transducer system em-ploying two individual transducers spaced apart the proper distance to be more or less in phase opposition to each other at one of the trap frequencies. The individual transducers neverthe-less remain largely in phase with each other at the other trap frequency, so as to aid each other in producing the compensation effect.
Patent CA-1239244-A (CA)
Inventor: WINTERS JONATHAN K
IPC: C09D191/06
Filed: 1983-05-02
Granted: 1988-07-12
Abstract: ABSTRACT      Water  reducible,  dispersible  coating  composition comprising:  organic vehicle containing wax compounds of low oil content, neopentyl ester, carboxylic acid, amine, alcoholic coupling solvent, water.  Vehicle is preferably amine salt of organic wax of low oil content, long-chain carboxylic acid and neopentyl ester, e.g. C30 acid and pentaerythritol.
Patent CA-1197598-A (CA)
Inventor: KATAYAMA YOSHIYUKI
IPC: G05D1/08
Filed: 1983-05-06
Granted: 1985-12-03
Abstract: Abstract of the Disclosure A work vehicle with a rolling-control mechanis, having a ground-engaging implement to be connected via a three-point link mechanism adapted to be free to effect adjustment with respect to the connection positions, has a sensor to detect slanting of the vehicle body.  It also has means for correcting the control gain based on the detection results thereof, in response to the adjustment of the implement-attaching width and of the connection positions of three-point link mechanism.  It may further be provided with a sensor and a control mechanism for effecting the control to minimize errors as are particular to using, as the rolling-control mechanism, torsional displacement in the three-point link mechanism.
Patent CA-1201386-A (CA)
Inventor: WALSH MICHAEL F
IPC: A61K8/00
Filed: 1983-07-06
Granted: 1986-03-04
Abstract: ABSTRACT            The invention relates to an aqueous clear single-phase liquid hair rinse conditioner.   On dilution of the conditioner during use there is deposited on the hair a lyotropic liquid crystal phase formed by interaction between an ionised polymer and an ionic surfactant of opposite charge.   There is also present in the composition a clarifying agent in order to maintain the composition in the form of a clear single-phase solution prior to dilution.   The polymer-surfactant complex in the form of a liquid crystal phase deposited from the hair conditioner of the invention is more effective to improve the ease of wet combing of the hair than a complex not in the form of a liquid crystal.
Patent CA-1204224-A (CA)
Inventor: MILGRAM ALVIN
IPC: H01L21/027
Filed: 1983-07-29
Granted: 1986-05-06
Abstract: A LIFT-OFF PROCESS FOR FABRICATING SELF-ALIGNED CONTACTS                    Abstract of the Disclosure A process is provided for fabricating self-aligned contacts to the surface of an integrated circuit.  The process includes the steps of depositing a layer of silicon dioxide 12 on the surface of a semiconductor structure 10; depositing a layer of polyimide 15 on the surface of the silicon dioxide 12; defining openings 23 in the polyimide material 15 and the silicon dioxide 12 to thereby expose regions of the semiconductor structure 10; and depositing metal 22 across the underlying surface and in the openings 23. In the preferred embodiment metal 22 is substantially the same thickness as silicon dioxide 12, and polyimide material 15 is masked using sequentially deposited layers of silicon dioxide 18 and photoresist 21.
Patent CA-1173168-A (CA)
Inventor: ECKERT ALTON B
IPC: H04L5/14
Filed: 1983-08-02
Granted: 1984-08-21
Abstract: ABSTRACT OF THE DISCLOSURE         A transmission system linking units of an electronic postal meter.  The meter includes a control unit, an accounting unit and a printing unit, each incorporating a CPU having a separate crystal controlled clock.  Communication between the units is serial character asynchronous, bit synchronous, in message form, with the bits of the messages being timed in accordance with a given schedule for synchronous control.  The messages themselves, upon receipt by a receiver, are returned bit by bit to the transmitter, for checking, whereupon the transmitter sends a no-error pulse upon successful comparison of the transmitted message and the message received from the receiver.  All control and data signals utilize the same pair of conductors in each direction with precisely defined timing for control.
Patent CA-1270754-A (CA)
Inventor: GURVICH MAX A
IPC: A01N25/00
Filed: 1983-08-23
Granted: 1990-06-26
Abstract: Applicant:     Pace National Corporation Title:   Thick Suspension Bait ABSTRACT     A semiliquid suspension bait has the texture and consistency of thin puddng so that it can be readily consumed by vermin, such as insects, rats, slugs and snails.  The bait is a thick mud including a hydrophobic oleaginous base, an emulsifier, a thickener and an attractant, and is easily extruded from a plastic squeeze bottle or tube but is minimally absorbable by porous soil and resists erosion by rainwater and irrigation water.  The thickener may include a combination of starch thickener and non-starch thickener.  The bait has a viscosity of between about 5,500 cp and 20,000 cp and when poured from an open mouthed container plops in gobs that string in parting, and when deposited in a mound onto a generally horizontal surface slumps slug-gishly into a flattish blob.
Patent CA-1228853-A (CA)
Inventor: WADA HIROSHI
IPC: G01N31/22
Filed: 1983-10-21
Granted: 1987-11-03
Abstract: Abstract:   The invention provides a naphthalene derivative of the formula:                           wherein R1 is hydrogen and R2 is lower alkyl or phenyl-lower alkyl; or R1 and R2 are combined together to form lower alkylene; X is halogen; and the absolute configura-tion at the asymmetric carbon atom shown by the asterisk is either the (S)- or (R)-configuration, and a method for the preparation thereof.  The naphthalene derivative is useful as a chiral reagent for determining the optical purity of an optically active compound containing at least one functional group selected from hydroxy, amino and imino groups.
Patent CA-1209742-A (CA)
Inventor: SHEN MING
IPC: C08L83/04
Filed: 1983-10-24
Granted: 1986-08-12
Abstract: A PROCESS FOR PREPARING A ONE-COMPONENT     ORGANOPOLYSILOXANE COMPOSITION                  Abstract of the Disclosure A process for preparing a one-component organopoly-siloxane composition which comprises heating a catalyst which is capable of promoting the addition of silicon-bonded hydrogen to aliphatically unsaturated groups in the presence of an organo-polysiloxane having aliphatically unsaturated groups and/or a filler at an elevated temperature and thereafter adding an organosilicon compound having silicon-bonded hydrogen to the mixture after it has cooled.  The resultant composition, which can be stored at room temperature can be crosslinked by heating to a temperature of about 100°C or more.
Patent CA-1215842-A (CA)
Inventor: VULETIC BOGDAN
IPC: C21B13/14
Filed: 1983-11-14
Granted: 1986-12-30
Abstract: ABSTRACT In a process for the direct production of sponge iron particles and liquid crude iron from iron ore in lump form, which is reduced in a direct reduction unit and fed in a hot condition to a melting gasifier, the sponge iron particles which are discharged from the direct reduction unit are separated into a fine grain fraction and a coarse grain fraction, and only the fine grain fraction is fed to the melting gasifier. That ensures economy of operation, without an excess of gas.
Patent CA-1228306-A (CA)
Inventor: SHUERT LYLE H
IPC: B65D90/00
Filed: 1983-11-15
Granted: 1987-10-20
Abstract: ABSTRACT OF THE DISCLOSURE           A reusable plastic base serves as a pallet which may be lifted by the skids of a forklift truck.  A sleeve is removably attached to the base and forms the side walls of the container.  In the preferred embodiment, the sleeve is made of corrugated material having tabs formed along its lower edge.  The tabs are adapted to pass through slots in the base and be folded underneath the base to hold the components together.  The base is preferably designed with a peripheral groove lying substantially at floor level to receive the edge of the sleeve.  Compressive loads applied to the container are transferred by the sleeve directly to the floor thereby minimizing deformation of peripheral portions of the base.
Patent CA-1227391-A (CA)
Inventor: BEARD ROBERT W
IPC: A61M5/145
Filed: 1983-11-28
Granted: 1987-09-29
Abstract: Portable Fluid Infusion Apparatus Abstract A portable infusion device includes a disposable syringe which is located in a removable section of a com-pact package that comprises the device.  In order to con-serve space, a flexible piston rod assembly is provided wherein the syringe plunger head is connected to a thin flexible plunger stem which is reversely bent about the upstream end of the syringe body so that the outer end of the stem lies directly adjacent and parallel to the syringe body.  A small motor located in the non-removable portion of the package drives the plunger through a screw which sequentially engages closely spaced teeth on the face of the plunger stem as it moves along the outer sur-face of the syringe.  When the syringe contents have been discharged, the removable section/ including the syringe and plunger stem assembly, can be readily removed and replaced.
Patent CA-1213115-A (CA)
Title: Controlled shear cold-feed mixture extruder
Inventor: BOGUSLAWSKI JAN J
IPC: B29C48/67
Filed: 1983-12-08
Granted: 1986-10-28
Abstract: ABSTRACT OF DISCLOSURE    An extruder, including a rotor and a barrel, having mixing or working zones therein in which the material being mixed or worked is transferred layer by layer from upstream grooves in the rotor to input grooves in the barrel, and from output grooves in the barrel, which grooves are interleaved with the input grooves, layer by layer back to downstream grooves in the rotor. The input and output grooves of the barrel are intercommunicated by means of corresponding channels each of which has a selectively radially movable throttling member positioned therein for varying the cross-sectional opening of the channel in which it is positioned and, thus, the amount of shearing action and work performed on the material passing through such channel.
Patent CA-1225002-A (CA)
Title: Water washable silica sols and their use as antiskid  agents
Inventor: JOLLY COLIN S
IPC: B01J13/00
Filed: 1984-04-24
Granted: 1987-08-04
Abstract: ABSTRACT OF THE DISCLOSURE     Silica sol antiskid materials having good water washability are disclosed.  The compositions contain as additives a water soluble polyhydroxy compound and/or a water soluble alkanolamine.
Patent CA-1219696-A (CA)
Inventor: TAI WUN T
IPC: C08L7/00
Filed: 1984-05-02
Granted: 1987-03-24
Abstract: ABSTRACT OF THE DISCLOSURE        A non-flammable water-in-oil cement emulsion for new and retread tires comprising: