baber/WOPTO huggingface dataset:
Patent CA-2009030-A1 (CA)
Inventor: LEESON PLATO J
IPC: F15B9/17
Filed: 1990-01-31
Abstract: Abstract Of The Disclosure A time division multiplexed (TDM) hydraulic control system having a plurality of channels, each channel having a servo actuator.  Electrical demand signals are arranged in TDM sequence and applied to a single multiplexed pilot valve so that the pilot valve produces a plurality of hydraulic signals. Commutator means are associated with the pilot valve for distributing the hydraulic signals to the associated channels.  In order to achieve useful output flow rates in the channels, each channel includes a second stage valve which integrates the hydraulic signals for its channel to produce an output flow rate which is a function of the integrated signal.  The flow rates are continuously produced (as compared to the multiplexed output signals) and are coupled to actuators in the channels for controllably adjusting the position thereof. Feedback means associated with the actuators includes rate feedback for stabilizing the multiplexed control loops.
Patent CA-2009654-A1 (CA)
Title: Method of predicting drill bit performance
Inventor: HARELAND GEIR
IPC: E21B44/00
Filed: 1990-02-09
Abstract: ABSTRACT OF THE DISCLOSURE         A method is disclosed for predicting the per-formance of a drill bit.  By using a generalized model, with bit description, operating conditions and rock prop-erties as inputs, the rate of penetration and duration for the bit can be predicted.  Further, model is based on the-oretical considerations of single-cutter rock interaction and can include a variable for cutter wear.
Patent CA-2010312-A1 (CA)
Title: Peptide derivatives and their pharmaceutical use
Inventor: UCHIDA ITSUO
IPC: C07K5/078
Filed: 1990-02-19
Abstract: Peptide derivatives of the following general formula   wherein R1 and R2 are the same or different and respectively mean a hydrogen atom or a C1-5 alkyl group, R3 and R4 are the same or different and respectively mean a hydrogen atom or a C1-5 alkyl or phenyl, or R3 and R4 combinedly mean a C2-7 alkylene group, R5 and R6 are the same or different and respectively mean a hydrogen atom or a C1-5 alkyl group, X means -NH-, -O- or -CH2-, Y means -CH2- or -S-, and m and n respectively mean 0 or 1, provided that when X is -NH- or -O-, m is 1 and all of R1, R2, R3 and R4 do not mean a hydrogen atom at the same time; acid addition salts thereof; and pharmaceutical use thereof.    Since the compounds and their acid addition salts of the present invention possess more potent actions on central nervous system (e.g. antagonistic action against hypothermia, locomotor stimulant action, spinal reflex stimulant action), they are of use as a therapeutic medicament for central nervous disorders such as impaired consciousness, depression, hypomnesia, the like in association with schizophrenia, melancholia, senile dementia, sequelae of cerebrovascular disorders, head trauma, epilepsy and spinocerebellar degeneracy.
Patent CA-2010450-A1 (CA)
Title: Method for encrypting transmitted data using a unique key
Inventor: ATALLA MARTIN M
IPC: G09C1/00
Filed: 1990-02-20
Abstract: The invention comprises a method for encrypting data for communication between a host computer and each of a plurality of remote terminals in a network. A method is provided for periodically generating a unique dynamic encryption key for each of said plurality of terminals using a system seed key residing only in the host computer. The dynamic encryption key generated for use by said terminal in encrypting data transmitted to said host computer and for decrypting data received from said host computer. The method includes storing at said terminal the dynamic key previously generated by said host for said terminal.
Patent CA-2011354-A1 (CA)
Title: Dispositif de connexion auto-obturant entre contenants
Inventor: BAC JEAN-CLAUDE
IPC: B64D37/32
Filed: 1990-03-02
Abstract: Dispositif de connexion auto-obturant entre contenants à paroi souple  appuyée  sur  une  cloison  rigide  (1) ou mince (1'), traversée  par une manchette de  liaison (3) à repli intérieur au contenant, qu'une  traction écartant les contenants obture, avant  rupture  d'un  fût  cylindrique  (6), par un élément de coincement (9) (13), après avoir provoqué le retournement  du repli (5) par dessus les orifices d'un tronçon de tube (10).
Patent CA-2011701-A1 (CA)
Title: Rewinding machine for the formation of rolls of paper or the like
Inventor: BIAGIOTTI GUGLIELMO
IPC: B65H19/28
Filed: 1990-03-07
Abstract: (1) ABSTRACT      A rewinder for converting large supply rolls of paper into smaller rolls such as toilet tissue and kitchen towels includes a pair of winding cylinders, the surfaces of which are spaced slightly apart to create a nip therebetween.  The cylinders rotate  in the same direction,  so as to create opposing surface movement in the area of the nip.  A web of paper  enters  the  nip  and  crosses  therethrough  from  one winding cylinder to the other, passing firstly the winding cylinder,  the surface of which is moving in a direction opposite to the incoming direction of the web.  A core on which the web is to be wound is to be inserted into the nip, pinching web  between  the  first  winding  roll,  causing  a reverse movement in the direction of the web and separating the web in the nip between the two winding cylinders.  The core has adhesive on its surface which contacts the web and causes the leading edge of the web to fold back upon itself and wind up on the core under the action of the second winding cylinder to create a small log or roll of paper on the core in the space between the two winding cylinders.  The invention includes means for taking up the slack in that portion of the advancing web immediately in front of the winding cylinder during the period when the leading edge of the web folds back upon itself and before it begins to wind (2) up  on  the  core  under  the  action  of  the  second  winding cylinder.
Patent CA-2013221-A1 (CA)
Inventor: MCGILVERY JAMES D
IPC: C01B25/163
Filed: 1990-03-28
Abstract: Phosphorous  acid  is  formed  by  gaseous  phase oxidation  of phosphorus  with  water  vapour  to  form predominantly P2O3 and dissolving the P2O3 so-formed in water.  The P2O3 also can be recovered as the product by quenching the P2O3  to a stable temperature using an inert cooling medium rather than water.  Oxygen also may be  used  in  conjunction  with  the  water  vapour. Sufficiently rapid quenching of reaction products may result  in  the  formation of red amorphous phosphorus from unreacted phosphorus.
Patent CA-2013618-A1 (CA)
Title: High quality extrusion coated paper
Inventor: AVNI EITAN
IPC: D21H19/22
Filed: 1990-04-02
Abstract: HIGH QUALITY EXTRUSION COATED PAPER                 ABSTRACT OF THE DISCLOSURE          A  process of producing high quality extrusion coated paper for high quality printing by extruding polyethylene on a highly smoothed base sheet of paper and passing the coated base sheet through the nip of two cooperating rollers, at least one of which rollers is a low-friction gloss chill roller having a surface finish with a a degree of roughness between that of a high gloss roller and a matte  finished roller.
Patent CA-2014883-A1 (CA)
Inventor: SCHACHTER FRIEDRICH
IPC: B26B21/40
Filed: 1990-04-19
Abstract: In a shaving instrument including a razor blade having an edge attached to one end of a support and a guard bar arranged in precise spaced relation parallel to said razor blade edge, the improvement of a patterned texture on a region of an outer surface of the guard bar, the texture including one or more depressions each having a mound of minute height which constitutes a border of each depression, the material of each mound formed by a solidified part of the material which was melted and displaced from the guard bar to form the depressions; the texture being positioned such that when the shaving instrument is slidingly applied to skin having hair extending therefrom, the texture exerts a degree of drag or friction thereto which causes the skin to be pulled slightly and the hair to be properly positioned for cutting by the blade edge. The texture is imprinted upon the guard bar by a high energy beam, preferably from a YAG-Nd laser.
Patent CA-2015983-A1 (CA)
Title: Self-filling anti-siphon fluid flow system for particle analysis methods and instruments
Inventor: LONGMAN MILLARD
IPC: G01N15/00
Filed: 1990-05-03
Abstract: ABSTRACT         A fluid flow system for use with an analytical instrument is provided having a sample reservoir for holding a liquid suspension of particles to be analyzed, a reagent reservoir for holding a reagent, pump means for pumping fluid to and from the reservoirs to a pumping reservoir, valve means for restricting fluid flow from the reagent reservoir to the pumping reservoir, first conduit means interconnecting the reagent and sample reservoirs, second conduit means con-necting the sample and pumping reservoir at a point just behind a metered aperture provided in an end of the second conduit means, and in a preferred embodiment, third conduit means connecting the first and second reservoirs and valve means for restricting fluid flow from the reagent reservoir to the pumping reservoir through the third conduit means, the end of each of the conduit means being maintained at the same physical level.            I/26208.1/1-2
Patent CA-2017027-A1 (CA)
Inventor: EBERLY PAUL E JR
IPC: B01J29/82
Filed: 1990-05-17
Abstract: A catalyst is provided which comprises a crystalline zeolite, discrete particles of phosphorus containing alumina, particularly an alkaline earth metal phosphate containing alumina, dispersed in a non-zeolitic inorganic oxide matrix.  A catalytic cracking process utilizing the catalyst is also provided.  Such phosphate treated catalysts exhibit increased attrition resistance.
Patent CA-2020585-A1 (CA)
Inventor: POINT JACQUES
IPC: F04D15/00
Filed: 1990-07-06
Abstract: Cette pompe centrifuge, destinée au pompage de liquides, comprend une turbine liée en rotation à un rotor avec aimant permanent appartenant à un moteur électrique de type synchrone. Le rotor qui possède un jeu axial est reçu dans un logement cylindrique appartenant au corps du stator du moteur. Pour orienter le sens d'entraînement du rotor au démarrage de la pompe, des configurations complémentaires sont prévues d'une part sur la face frontale du rotor éloignée de la turbine, et d'autre part sur le fond du logement. Ces configurations comprennent des surfaces hélicoïdales raccordées à leurs extrémités par des crans. Application particulière: pompe à eau pour aquarium.
Patent CA-2021907-A1 (CA)
Inventor: SHUTTLEWORTH DEREK
IPC: C08L21/00
Filed: 1990-07-25
Abstract: Abstract of the Disclosure PROCESS FOR THE SURFACE TREATMENT OF POLYMERS      FOR REINFORCEMENT-TO-RUBBER ADHESION     This invention is directed to treating the surfaces of rubber-reinforcing materials with a gas plasma of O2 and CF4 to activate the surfaces to make them more receptive to adhesives.  Optionally the surfaces of the reinforcing materials may be exposed to a polymerizing gas plasma such as a thio-carbon to coat the surfaces of the reinforcing material with substances that promote adhesion to rubber.  The treated surfaces have been shown to adhere directly to rubber when vulcanized in the normal fashion.
Patent CA-2021989-A1 (CA)
Title: Limb brace or immobiliser
Inventor: YOUNG DAVID E
IPC: A61F5/058
Filed: 1990-07-26
Abstract: Abstract of the Disclosure A limb brace or immobiliser having at least two re-latively rigid support arms extending medially and laterally along opposite sides of a wearer's limb, each support arm having a limb-contacting plate of arcuate cross-sectional configuration and a traction plate connected to or formed integrally with the limb-contacting plate.  Each traction plate has a pair of wing portions extending anteriorly and posteriorly in relation to the limb-support arm and spaced outwardly from the limb-contacting plate, with the span of the wing portions being substantially less than the anterior-posterior dimensions of the associated limb-contacting plate.  Attachment straps are adjustably secured to the wing portions and join corresponding wing portions of the traction plates on opposite sides of a wearer's limb to secure the assembly in limb-bracing or limb-immobilising condition.
Patent CA-2022197-A1 (CA)
Inventor: ARNALDO M GIARDINI
IPC: E02D29/02
Filed: 1990-07-30
Abstract: la presente invention est en rapport avec la réalisation d'un assemblage d'éléments préfabriqués en béton pour obtenir une structure d'un mur de soutenement ou d'un écran coupe-bruit capable de contenir une plantation végétale à l'interieur de ses éléments. Un avantage de grande impor tance de la presente invention est que les éléments préfabriqués en béton peuvent être fabriqués au moyen d'une presse mécanique ou hydraulique couramment utilisée pour la fabrication de blocs de béton pour maçonnerie.La structure est composée de deux éléments differents dont la forme réciproque permet l'emboitement entre eux lors de la pôse.
Patent CA-2022267-A1 (CA)
Title: Sound-emitting and bubble-blowing toy
IPC: A63H33/28
Filed: 1990-07-30
Abstract: SOUND-EMITTING AND BUBBLE-BLOWING TOY                    Abstract A toy saxophone is disclosed having a mouthpiece, a sound-emitting mechanism, a bubble-blowing mechanism, and air tubes connecting the mouthpiece to the sound-emitting and bubble-blowing mechanisms.  The toy saxophone further has an actuating mechanism comprising a manually depressible button coupled to the sound-emitting and bubble-blowing mechanisms whereby simultaneously blowing into the mouthpiece and depressing the button causes sound to be emitted from the sound-emitting mechanism and bubbles to be blown from the bubble-blowing mechanism.
Patent CA-2022493-A1 (CA)
Inventor: YAMAMOTO KENJI
IPC: C09D5/44
Filed: 1990-08-01
Abstract: A cationically electrodepositable finely divided gelled polymer obtained by, in the first step, emulsion polymerizing (A) a monomer component comprising: (a) a polymerizable unsaturated vinylsilane monomer containing a vinylic double bond and a hydrolyzable alkoxysilane group; (b) a polymerizable monomer having at least two radically polymerizable unsaturated groups in a molecule; (c) a polymerizable unsaturated monomer having a vinylic double bond and a hydroxyl group; and (d) another polymerizable unsaturated monomer, using a cationically reactive emulsifying agent having an allyl group in a molecule; and in the second step, emulsion polymerizing a monomer component (B) comprising: (e) a blocked monoisocyanate or polyisocyanate in which at least one isocyanate group in a molecule is blocked with a radically polymerizable monohydroxy compound; (f) a polymerizable unsaturated monomer having a vinylic double bond and a hydroxyl group; and (g) another polymerizable unsaturated monomer, in the presence of an aqueous finely divided gelled polymer obtained in the first step, the polymer having a core-sheath structure in which the polymerized product of the monomer component (A) is a core and the polymerized product of the monomer component (B) is a sheath, and process for producing same.
Patent CA-2026823-A1 (CA)
IPC: G10L25/90
Filed: 1990-10-03
Abstract: PITCH PERIOD SEARCHING METHOD AND     CIRCUIT FOR SPEECH CODEC                 ABSTRACT OF THE DISCLOSURE      Pitch periods for a long term predictor included in a speech codec are searched in two searching stages.  In the first searching stage, probable pitch periods are searched skipping a constant number of pitch periods, and in the second searching stage, pitch periods including the pitch period determined in the first searching stage and pitch periods neighboring the pitch period on both sides are searched.
Patent CA-2029489-A1 (CA)
Inventor: ARNEY MICHELLE M
IPC: A61M25/01
Filed: 1990-11-07
Abstract: MULTI-SECTION COAXIAL ANGIOPLASTY CATHETER                    ABSTRACT           An over-the-wire balloon catheter for use in angioplasty includes a dual lumen shaft formed by a multi-section outer tube with a multi-section inner tube  coaxially aligned  therein.   The  outer tube includes a proximal hypotube outer tube section which is connected to a manifold at its proximal end.  The outer tube also includes a distal high density poly-ethylene outer tube section which is attached to the distal end of the proximal outer tube section at an outer tube bonding region.   The inner tube has a proximal polyimide inner tube section which extends generally coaxially through the proximal outer tube section.  The inner tube also includes a distal high density polyethylene  inner tube  section which  is attached to the distal end of the first inner tube section at an inner tube bonding region.  The inner tube bonding region is spaced proximally from the outer tube bonding region, and a balloon is attached to the distal ends of the outer and inner tubes.
Patent CA-2030516-A1 (CA)
Inventor: PANG PETER K T
IPC: C07K16/00
Filed: 1990-03-22
Abstract: Hypertensive mammals may be treated to lower mean blood pressure by administering a calcium channel blocking agent together with a calcium supplement. The hypotensive effect of this combination is synergistic and the dose response is more predictable than the administration of either of these agents singly. <IMAGE>
Patent CA-2032647-A1 (CA)
Inventor: TALWAR ASHOK K
IPC: H04B1/12
Filed: 1990-12-19
Abstract: An interference cancellation system which is adapted to be connected to a radio receiver system having a receiver antenna, a receiver and a receiver transmission line interconnecting the receiver antenna and the receiver includes an auxiliary antenna, a first directional coupler connected to the auxiliary antenna, a second directional coupler connected to the receiver transmission line, a synchronous detector connected to the first and second directional couplers, a signal controller connected the synchronous detector and a subtractor connected to the receiver transmission line and to the signal controller. The auxiliary antenna exhibits a cardioid antenna pattern having a null, and is mounted coaxially with the receiver antenna, which is a directive antenna. The null of the auxiliary antenna is directed toward a desired signal and parallel with the boresight of the receiver antenna. Interfering signals received outside a predetermined angle from the receiver antenna boresight are cancelled by the interference cancellation system, but a desired signal received within the predetermined angle of boresight is not cancelled.
Patent CA-2035660-A1 (CA)
Title: Phenothrin shampoo
Inventor: BUXTON IAN R
IPC: A61K/
Filed: 1991-02-04
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to a lousicidal shampoo composition of phenothrin as lousicidal agent distributed in a shampoo base of water and one or more surface active agents, the shampoo containing as antimicrobial preservative 2-bromo-2-nitropropane-1,3-diol alone or in combination with 2, 4-dichlorobenzy alcohol.
Patent CA-2035750-A1 (CA)
Title: Process for producing foreign protein in escherichia coli
Inventor: NOGUCHI TOSHITADA
IPC: C12N15/70
Filed: 1991-02-06
Abstract: ABSTRACT OF THE DISCLOSURE           By infecting with T4 phage denB and/or alc mutant at a low m.o.i. E. coli previously transformed with a plasmid carrying a fused DNA having a DNA fragment encoding a foreign protein downstream of a transcription initiation signal and translation initiation signal derived from an appropriate T4 phage gene and then culturing the infected transformant, the desired foreign protein can be produced in an extremely high yield, as compared to the prior art technique.
Patent CA-2035886-A1 (CA)
Inventor: NAKAJIMA YOSHIO
IPC: C21C5/00
Filed: 1990-06-28
Abstract: A method for the dephosphorization of a chromium-containing molten pig iron with a reduced oxidation loss of chromium wherein a solid-gas mixture of a particulate flux dispersed in an oxygen-containing gas is injected into the chromium-containing molten pig iron from a location below a surface level of the chromium-containing molten pig iron, the flux containing at least 70 % by weight of CaO and CaF2 in sum with a weight ratio of CaO to CaF2 (CaO/CaF2) of not lower than 4/6, the solid-gas mixture having an O2/(CaO + CaF2) ratio within the range of from 20 to 120 Nl/kg wherein O2 is an amount of oxygen in Nl contained in the oxygen-containing gas.
Patent CA-2037171-A1 (CA)
Title: Method of automatically starting pouring of a continuous casting installation
Inventor: KURSFELD ARMIN
IPC: B22D11/18
Filed: 1991-02-27
Abstract: ABSTRACT            In  the  automatic  start  of  pouring  process  of  a continuous casting installation, metal melt  (11) is discharged in a controlled manner from a vessel (10) by means of a stopper valve (15) provided in it and a continuous casting mould (20), which is closed at the bottom by a starting head, is filled with the melt (11).  During the filling the stopper (15) is moved a number of times in the opening and closing directions in program-controlled time intervals and differing opening and closing displacements (s1 to sn) associated with them.  The stopper (15) is preferably moved during the first opening or the pair of first openings (92) approximately into the completely open    position (P1) and  its  opening  displacements  (s3,  s4,  s5)  are consequently reduced with increasing filling level (h). Pouring  may  be  started  extremely  reliably  and operationally securely with this very precise automatic start of pouring process.            (Fig. 1)
Patent CA-2038164-A1 (CA)
Title: Air gun for the production of non-woven fabric and non-woven fabric producing apparatus
Inventor: KOBAYASHI KEIJI
IPC: D01D5/098
Filed: 1991-03-13
Abstract: ABSTRACT         A gun comprises  an air nozzle and an accelerator tube, the air nozzle having filament inlet and outlet, further having compressed air inlet and outlet, the filaments being discharged from the filament outlet while being pulled by compressed air.          The accelerator tube is formed at a specific dimensional ratio and it is connected to the air nozzle in the filament discharging direction.  Non-woven fabric producing apparatus employs the air gun in conjunction with a guide tube and a separator nozzle, with an air flow rate regulator being disposed between the guide tube and the separator nozzle, the air flow rate regulator having an exhaust port for exhausting to the exterior a portion of compressed air which is used for carrying the filaments.  Accord-ing to the air gun, it is not necessary to increase the air pressure supplied to the air nozzle, and according to the non-woven fabric producing apparatus, a portion of the compressed air can be exhausted halfway.
Patent CA-2039723-A1 (CA)
Title: Oil filter construction for hand spinning
Inventor: HUANG ANDREW B
IPC: B01D35/30
Filed: 1990-08-29
Abstract: An improved spin-on type oil filter hosing (10) having a closed top end (11) and an open bottom end (12); the improvement of which consists of a handle (40) for facilitating hand installation and removal of the filter from an automobile engine is disclosed herein. In one embodiment, the handle is in the form of a bail (40) attached to the closed end (11) of the housing (10),, whereby the handle can be turned to attach or remove the filter from the engine.
Patent CA-2042749-A1 (CA)
Inventor: HUNT KENNETH E
IPC: B60K25/00
Filed: 1991-05-16
Abstract: AUTOMATIC RETURN MECHANISM FOR HYDROSTATIC  TRANSMISSION PRESSURE RELEASE VALVE:  A hydrostatic transmission pressure release valve control mechanism is provided to enable an operator to quickly release the transmission pressure and manually move the vehicle when the engine is not operating.  The pressure release mechanism, which permits vehicle movement for repairs, maintenance and similar activities, is automatically deactivated to restore transmission pressure as the vehicle brake is depressed in preparation for restarting the engine.